Updated 48 min ago

Vulnerability database

Every flaw the U.S. government’s cybersecurity agency (CISA) has confirmed attackers are using, plus the new WordPress plugin and theme bugs published each day, sorted by what they mean for a small business. We refresh it twice a day. If you see something your website or office runs, tell us.

1,764exploited flaws on CISA’s list

36added in the last 30 days

479new WordPress flaws this week

390,525entries in the database

32 results

Oct 28, 2026Linux Kernel Missing Initialization of a Variable VulnerabilityCVE-2026-46300 · Computers, phones & browsers · Linux · reported by 416baaa9-dc9f-4396-8d5f-8c081fb06d67ExploitedHigh 7.8
In the Linux kernel, the following vulnerability has been resolved: net: skbuff: preserve shared-frag marker during coalescing skb_try_coalesce() can attach paged frags from @from to @to. If @from has SKBFL_SHARED_FRAG set, the resulting @to skb can contain the same externally-owned or page-cache-backed frags, but the shared-frag marker is currently lost. That breaks the invariant relied on by later in-place writers. In particular, ESP input checks skb_has_shared_frag() before deciding whether an uncloned nonlinear skb can skip skb_cow_data(). If TCP receive coalescing has moved shared frags into an unmarked skb, ESP can see skb_has_shared_frag() as false and decrypt in place over page-cache backed frags. Propagate SKBFL_SHARED_FRAG when skb_try_coalesce() transfers paged frags. The tailroom copy path does not need the marker because it copies bytes into @to's linear data rather than transferring frag descriptors.
Product
Kernel
On CISA’s list since
Oct 28, 2026 (federal fix deadline Oct 31, 2026)
What to do
Attackers are using this now. Install Linux’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog git.kernel.org git.kernel.org
Sep 18, 2026Linux Kernel Race Condition VulnerabilityCVE-2025-39964 · Computers, phones & browsers · Linux · reported by 416baaa9-dc9f-4396-8d5f-8c081fb06d67ExploitedHigh 7.8
Linux Kernel contains a race condition vulnerability which allows concurrent writes to the same AF_ALG socket causing data to be unpredictably interleaved and creating inconsistencies in the socket's internal state.
Product
Kernel
On CISA’s list since
Sep 18, 2026 (federal fix deadline Sep 21, 2026)
What to do
Attackers are using this now. Install Linux’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog git.kernel.org git.kernel.org
Sep 18, 2026Linux Kernel Out-of-Bounds Write VulnerabilityCVE-2026-53266 · Computers, phones & browsers · Linux · reported by 416baaa9-dc9f-4396-8d5f-8c081fb06d67ExploitedHigh 8.8
Linux Kernel contains an out-of-bounds write vulnerability in the ebtables SNAT target which allows an ARP sender hardware address rewrite to write directly into a nonlinear socket-buffer fragment backed by a splice-imported file page. The impacted product(s) could be end-of-life (EoL) and/or end-of-service (EoS). Users are advised to discontinue use and/or transition to a supported version.
Product
Kernel
On CISA’s list since
Sep 18, 2026 (federal fix deadline Sep 21, 2026)
What to do
Attackers are using this now. Install Linux’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog git.kernel.org git.kernel.org
Sep 18, 2026Linux Kernel Improper Check for Unusual or Exceptional Conditions VulnerabilityCVE-2025-39682 · Computers, phones & browsers · Linux · reported by 416baaa9-dc9f-4396-8d5f-8c081fb06d67ExploitedCritical 9.8
Linux Kernel contains an improper check for unusual or exceptional conditions vulnerability in the TLS receive path which allows a zero-length record retrieved from the rx_list to bypass the intended recvmsg() record-type handling, potentially causing subsequent TLS records to be processed using incorrect zero-copy and queuing assumptions. The impacted product(s) could be end-of-life (EoL) and/or end-of-service (EoS). Users are advised to discontinue use and/or transition to a supported version.
Product
Kernel
On CISA’s list since
Sep 18, 2026 (federal fix deadline Sep 21, 2026)
What to do
Attackers are using this now. Install Linux’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog git.kernel.org git.kernel.org
Aug 27, 2026Linux Kernel Unspecified VulnerabilityCVE-2026-53362 · Computers, phones & browsers · Linux · reported by 416baaa9-dc9f-4396-8d5f-8c081fb06d67ExploitedHigh 7.8
Linux Kernel contains an unspecified vulnerability that can allow for privilege escalation via IPv6 networking subsystem. This vulnerability can impact multiple products, including but not limited to Suse, Red Hat, and other products using Linux.
Product
Kernel
On CISA’s list since
Aug 27, 2026 (federal fix deadline Aug 30, 2026)
What to do
Attackers are using this now. Install Linux’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog git.kernel.org git.kernel.org
Aug 26, 2026Linux Kernel Out-of-Bounds Write VulnerabilityCVE-2022-0995 · Computers, phones & browsers · Linux · reported by Red HatExploitedHigh 7.8
Linux Kernel contains an out-of-bounds memory write vulnerability which could allow a local user to gain privileged access or cause a denial of service on the system.
Product
Kernel
On CISA’s list since
Aug 26, 2026 (federal fix deadline Aug 29, 2026)
What to do
Attackers are using this now. Install Linux’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog packetstormsecurity.com packetstormsecurity.com
Jun 2, 2026Linux Kernel Improper Authentication VulnerabilityCVE-2022-0492 · Computers, phones & browsers · Linux · reported by Red HatExploitedHigh 7.8
Linux Kernel contains an improper authentication vulnerability which could allow for privilege escalation via the cgroups v1 release_agent feature.
Product
Kernel
On CISA’s list since
Jun 2, 2026 (federal fix deadline Jun 5, 2026)
What to do
Attackers are using this now. Install Linux’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog packetstormsecurity.com packetstormsecurity.com
May 1, 2026Linux Kernel Incorrect Resource Transfer Between Spheres VulnerabilityCVE-2026-31431 · Computers, phones & browsers · Linux · reported by 416baaa9-dc9f-4396-8d5f-8c081fb06d67ExploitedHigh 7.8
Linux Kernel contains an incorrect resource transfer between spheres vulnerability that could allow for privilege escalation.
Product
Kernel
On CISA’s list since
May 1, 2026 (federal fix deadline May 15, 2026)
What to do
Attackers are using this now. Install Linux’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog git.kernel.org git.kernel.org
Jan 26, 2026Linux Kernel Integer Overflow VulnerabilityCVE-2018-14634 · Computers, phones & browsers · Linux · reported by Red HatExploitedHigh 7.8
Linux Kernel contains an integer overflow vulnerability in the create_elf_tables() function which could allow an unprivileged local user with access to SUID (or otherwise privileged) binary to escalate their privileges on the system.
Product
Kernel
On CISA’s list since
Jan 26, 2026 (federal fix deadline Feb 16, 2026)
What to do
Attackers are using this now. Install Linux’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog openwall.com securityfocus.com
Oct 6, 2025Linux Kernel Heap Out-of-Bounds Write VulnerabilityCVE-2021-22555 · Computers, phones & browsers · Linux · reported by cve-coordination@google.comExploitedHigh 8.3
Linux Kernel contains a heap out-of-bounds write vulnerability that could allow an attacker to gain privileges or cause a DoS (via heap memory corruption) through user name space.
Product
Kernel
On CISA’s list since
Oct 6, 2025 (federal fix deadline Oct 27, 2025)
What to do
Attackers are using this now. Install Linux’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog packetstormsecurity.com packetstormsecurity.com
Sep 4, 2025Linux Kernel Time-of-Check Time-of-Use (TOCTOU) Race Condition VulnerabilityCVE-2025-38352 · Computers, phones & browsers · Linux · reported by 416baaa9-dc9f-4396-8d5f-8c081fb06d67ExploitedHigh 7.8
Linux kernel contains a time-of-check time-of-use (TOCTOU) race condition vulnerability that has a high impact on confidentiality, integrity, and availability.
Product
Kernel
On CISA’s list since
Sep 4, 2025 (federal fix deadline Sep 25, 2025)
What to do
Attackers are using this now. Install Linux’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog git.kernel.org git.kernel.org
Jun 17, 2025Linux Kernel Improper Ownership Management VulnerabilityCVE-2023-0386 · Computers, phones & browsers · Linux · reported by Red HatExploitedHigh 7.8
Linux Kernel contains an improper ownership management vulnerability, where unauthorized access to the execution of the setuid file with capabilities was found in the Linux kernel’s OverlayFS subsystem in how a user copies a capable file from a nosuid mount into another mount. This uid mapping bug allows a local user to escalate their privileges on the system.
Product
Kernel
On CISA’s list since
Jun 17, 2025 (federal fix deadline Jul 8, 2025)
What to do
Attackers are using this now. Install Linux’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog packetstormsecurity.com git.kernel.org
Apr 9, 2025Linux Kernel Out-of-Bounds Read VulnerabilityCVE-2024-53150 · Computers, phones & browsers · Linux · reported by 416baaa9-dc9f-4396-8d5f-8c081fb06d67ExploitedHigh 7.1
Linux Kernel contains an out-of-bounds read vulnerability in the USB-audio driver that allows a local, privileged attacker to obtain potentially sensitive information.
Product
Kernel
On CISA’s list since
Apr 9, 2025 (federal fix deadline Apr 30, 2025)
What to do
Attackers are using this now. Install Linux’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog git.kernel.org git.kernel.org
Apr 9, 2025Linux Kernel Out-of-Bounds Access VulnerabilityCVE-2024-53197 · Computers, phones & browsers · Linux · reported by 416baaa9-dc9f-4396-8d5f-8c081fb06d67ExploitedHigh 7.8
Linux Kernel contains an out-of-bounds access vulnerability in the USB-audio driver that allows an attacker with physical access to the system to use a malicious USB device to potentially manipulate system memory, escalate privileges, or execute arbitrary code.
Product
Kernel
On CISA’s list since
Apr 9, 2025 (federal fix deadline Apr 30, 2025)
What to do
Attackers are using this now. Install Linux’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog git.kernel.org git.kernel.org
Mar 4, 2025Linux Kernel Use of Uninitialized Resource VulnerabilityCVE-2024-50302 · Computers, phones & browsers · Linux · reported by 416baaa9-dc9f-4396-8d5f-8c081fb06d67ExploitedMedium 5.5
The Linux kernel contains a use of uninitialized resource vulnerability that allows an attacker to leak kernel memory via a specially crafted HID report.
Product
Kernel
On CISA’s list since
Mar 4, 2025 (federal fix deadline Mar 25, 2025)
What to do
Attackers are using this now. Install Linux’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog git.kernel.org git.kernel.org
Feb 5, 2025Linux Kernel Out-of-Bounds Write VulnerabilityCVE-2024-53104 · Computers, phones & browsers · Linux · reported by 416baaa9-dc9f-4396-8d5f-8c081fb06d67ExploitedHigh 7.8
Linux kernel contains an out-of-bounds write vulnerability in the uvc_parse_streaming component of the USB Video Class (UVC) driver that could allow for physical escalation of privilege.
Product
Kernel
On CISA’s list since
Feb 5, 2025 (federal fix deadline Feb 26, 2025)
What to do
Attackers are using this now. Install Linux’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog git.kernel.org git.kernel.org
Sep 9, 2024Linux Kernel PIE Stack Buffer Corruption Vulnerability CVE-2017-1000253 · Computers, phones & browsers · Linux · reported by MITREExploitedRansomwareHigh 7.8
Linux kernel contains a position-independent executable (PIE) stack buffer corruption vulnerability in load_elf_ binary() that allows a local attacker to escalate privileges.
Product
Kernel
On CISA’s list since
Sep 9, 2024 (federal fix deadline Sep 30, 2024)
What to do
Attackers are using this now. Install Linux’s update today (ransomware groups use this one). If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog securityfocus.com securitytracker.com
Aug 21, 2024Linux Kernel Heap-Based Buffer Overflow VulnerabilityCVE-2022-0185 · Computers, phones & browsers · Linux · reported by Red HatExploitedHigh 8.4
Linux kernel contains a heap-based buffer overflow vulnerability in the legacy_parse_param function in the Filesystem Context functionality. This allows an attacker to open a filesystem that does not support the Filesystem Context API and ultimately escalate privileges.
Product
Kernel
On CISA’s list since
Aug 21, 2024 (federal fix deadline Sep 11, 2024)
What to do
Attackers are using this now. Install Linux’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog git.kernel.org github.com
Jun 26, 2024Linux Kernel Use-After-Free VulnerabilityCVE-2022-2586 · Computers, phones & browsers · Linux · reported by security@ubuntu.comExploitedMedium 5.3
Linux Kernel contains a use-after-free vulnerability in the nft_object, allowing local attackers to escalate privileges.
Product
Kernel
On CISA’s list since
Jun 26, 2024 (federal fix deadline Jul 17, 2024)
What to do
Attackers are using this now. Install Linux’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog cve.mitre.org lore.kernel.org
May 30, 2024Linux Kernel Use-After-Free VulnerabilityCVE-2024-1086 · Computers, phones & browsers · Linux · reported by cve-coordination@google.comExploitedRansomwareHigh 7.8
Linux kernel contains a use-after-free vulnerability in the netfilter: nf_tables component that allows an attacker to achieve local privilege escalation.
Product
Kernel
On CISA’s list since
May 30, 2024 (federal fix deadline Jun 20, 2024)
What to do
Attackers are using this now. Install Linux’s update today (ransomware groups use this one). If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog openwall.com openwall.com
May 12, 2023Linux Kernel Race Condition VulnerabilityCVE-2014-0196 · Computers, phones & browsers · Linux · reported by Red HatExploitedMedium 5.5
Linux Kernel contains a race condition vulnerability within the n_tty_write function that allows local users to cause a denial-of-service (DoS) or gain privileges via read and write operations with long strings.
Product
Kernel
On CISA’s list since
May 12, 2023 (federal fix deadline Jun 2, 2023)
What to do
Attackers are using this now. Install Linux’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog bugzilla.novell.com git.kernel.org
May 12, 2023Linux Kernel Improper Input Validation VulnerabilityCVE-2010-3904 · Computers, phones & browsers · Linux · reported by security@ubuntu.comExploitedHigh 7.8
Linux Kernel contains an improper input validation vulnerability in the Reliable Datagram Sockets (RDS) protocol implementation that allows local users to gain privileges via crafted use of the sendmsg and recvmsg system calls.
Product
Kernel
On CISA’s list since
May 12, 2023 (federal fix deadline Jun 2, 2023)
What to do
Attackers are using this now. Install Linux’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog git.kernel.org lists.opensuse.org
Mar 30, 2023Linux Kernel Use-After-Free VulnerabilityCVE-2023-0266 · Computers, phones & browsers · Linux · reported by cve-coordination@google.comExploitedHigh 7.9
Linux kernel contains a use-after-free vulnerability that allows for privilege escalation to gain ring0 access from the system user.
Product
Kernel
On CISA’s list since
Mar 30, 2023 (federal fix deadline Apr 20, 2023)
What to do
Attackers are using this now. Install Linux’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog git.kernel.org github.com
Oct 20, 2022Linux Kernel Privilege Escalation VulnerabilityCVE-2021-3493 · Computers, phones & browsers · Linux · reported by security@ubuntu.comExploitedHigh 8.8
The overlayfs stacking file system in Linux kernel does not properly validate the application of file capabilities against user namespaces, which could lead to privilege escalation.
Product
Kernel
On CISA’s list since
Oct 20, 2022 (federal fix deadline Nov 10, 2022)
What to do
Attackers are using this now. Install Linux’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog packetstormsecurity.com packetstormsecurity.com
Sep 15, 2022Linux Kernel Improper Input Validation VulnerabilityCVE-2013-6282 · Computers, phones & browsers · Linux · reported by MITREExploitedHigh 8.8
The get_user and put_user API functions of the Linux kernel fail to validate the target address when being used on ARM v6k/v7 platforms. This allows an application to read and write kernel memory which could lead to privilege escalation.
Product
Kernel
On CISA’s list since
Sep 15, 2022 (federal fix deadline Oct 6, 2022)
What to do
Attackers are using this now. Install Linux’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog git.kernel.org codeaurora.org
Sep 15, 2022Linux Kernel Integer Overflow VulnerabilityCVE-2013-2596 · Computers, phones & browsers · Linux · reported by MITREExploitedHigh 7.8
Linux kernel fb_mmap function in drivers/video/fbmem.c contains an integer overflow vulnerability that allows for privilege escalation.
Product
Kernel
On CISA’s list since
Sep 15, 2022 (federal fix deadline Oct 6, 2022)
What to do
Attackers are using this now. Install Linux’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog forum.xda-developers.com git.kernel.org
Sep 15, 2022Linux Kernel Privilege Escalation VulnerabilityCVE-2013-2094 · Computers, phones & browsers · Linux · reported by Red HatExploitedHigh 8.4
Linux kernel fails to check all 64 bits of attr.config passed by user space, resulting to out-of-bounds access of the perf_swevent_enabled array in sw_perf_event_destroy(). Explotation allows for privilege escalation.
Product
Kernel
On CISA’s list since
Sep 15, 2022 (federal fix deadline Oct 6, 2022)
What to do
Attackers are using this now. Install Linux’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog git.kernel.org lists.centos.org
May 25, 2022Linux Kernel Privilege Escalation VulnerabilityCVE-2014-3153 · Computers, phones & browsers · Linux · reported by chrome-cve-admin@google.comExploitedHigh 7.8
The futex_requeue function in kernel/futex.c in Linux kernel does not ensure that calls have two different futex addresses, which allows local users to gain privileges.
Product
Kernel
On CISA’s list since
May 25, 2022 (federal fix deadline Jun 15, 2022)
What to do
Attackers are using this now. Install Linux’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog git.kernel.org linux.oracle.com
Apr 25, 2022Linux Kernel Privilege Escalation VulnerabilityCVE-2022-0847 · Computers, phones & browsers · Linux · reported by Red HatExploitedHigh 7.8
Linux kernel contains an improper initialization vulnerability where an unprivileged local user could escalate their privileges on the system. This vulnerability has the moniker of "Dirty Pipe."
Product
Kernel
On CISA’s list since
Apr 25, 2022 (federal fix deadline May 16, 2022)
What to do
Attackers are using this now. Install Linux’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog packetstormsecurity.com packetstormsecurity.com
Apr 11, 2022Linux Kernel Privilege Escalation VulnerabilityCVE-2021-22600 · Computers, phones & browsers · Linux · reported by cve-coordination@google.comExploitedMedium 6.6
Linux Kernel contains a flaw in the packet socket (AF_PACKET) implementation which could lead to incorrectly freeing memory. A local user could exploit this for denial-of-service (DoS) or possibly for privilege escalation.
Product
Kernel
On CISA’s list since
Apr 11, 2022 (federal fix deadline May 2, 2022)
What to do
Attackers are using this now. Install Linux’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog git.kernel.org lists.debian.org
Mar 3, 2022Linux Kernel Race Condition VulnerabilityCVE-2016-5195 · Computers, phones & browsers · Linux · reported by chrome-cve-admin@google.comExploitedHigh 7
Race condition in mm/gup.c in the Linux kernel allows local users to escalate privileges.
Product
Kernel
On CISA’s list since
Mar 3, 2022 (federal fix deadline Mar 24, 2022)
What to do
Attackers are using this now. Install Linux’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog fortiguard.com git.kernel.org
Dec 10, 2021Linux Kernel Improper Privilege Management VulnerabilityCVE-2019-13272 · Computers, phones & browsers · Linux · reported by MITREExploitedHigh 7.8
Kernel/ptrace.c in Linux kernel mishandles contains an improper privilege management vulnerability that allows local users to obtain root access.
Product
Kernel
On CISA’s list since
Dec 10, 2021 (federal fix deadline Jun 10, 2022)
What to do
Attackers are using this now. Install Linux’s update today. If there is no update for your version, take the product off the internet or stop using it until there is.
Full record and what to do →NVD record CISA catalog packetstormsecurity.com packetstormsecurity.com

Where this comes from: the exploited list is CISA’s Known Exploited Vulnerabilities catalog. Everything else is the whole National Vulnerability Database, where each record is published by the team that found the bug (Wordfence, Patchstack, WPScan, the vendors themselves and others); we show who. Exploit odds are FIRST’s EPSS, updated daily. Titles and categories are ours, so check the linked record before acting on a detail. For a write-up of the big ones, see our advisories. Every vendor, and every WordPress plugin and theme with a recorded flaw, also has its own page. All of it is free to reuse as JSON, CSV or RSS.

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