Critical security advisoryCriticalFlagged by our vulnerability database: PHP2Shell is on CISA’s exploited list. Most WordPress hosting runs PHP. See if your site is affectedFlagged by our vulnerability database: PHP2Shell is being exploited. DetailsExploited: PHP2Shell. Check your site
HuttenlocherTechnologies
Updated 10 h 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.

1,762exploited flaws on CISA’s list
34added in the last 30 days
343new WordPress flaws this week
390,080entries in the database

31 results

  • Oct 21, 2026NoMachine nxhtd Server-Side Request Forgery Information Disclosure Vulnerability.CVE-2026-92210 · Other software · NoMachine · reported by zdi-disclosures@trendmicro.comHigh 7.2

    NoMachine nxhtd Server-Side Request Forgery Information Disclosure Vulnerability. This vulnerability allows remote attackers to initiate arbitrary server-side requests on affected installations of NoMachine. Authentication is not required to exploit this vulnerability. The specific flaw exists within the web service, which listens on UDP port 4443 by default. The issue results from the lack of proper validation of a URI prior to accessing resources. An attacker can leverage this vulnerability to initiate requests in the context of the service account. Was ZDI-CAN-31619.

    Product
    NoMachine
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Oct 21, 2026NoMachine Redis Improper Authentication Local Privilege Escalation Vulnerability.CVE-2026-92209 · Other software · NoMachine · reported by zdi-disclosures@trendmicro.comHigh 7.8

    NoMachine Redis Improper Authentication Local Privilege Escalation Vulnerability. This vulnerability allows local attackers to escalate privileges on affected installations of NoMachine. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the authentication mechanism controlling access to the Redis database. The issue results from using insufficient entropy in the generation of credentials. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of the service account. Was ZDI-CAN-30984.

    Product
    NoMachine
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Oct 21, 2026NoMachine mDNS Heap-based Buffer Overflow Remote Code Execution Vulnerability.CVE-2026-92208 · Other software · NoMachine · reported by zdi-disclosures@trendmicro.comHigh 8.8

    NoMachine mDNS Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of NoMachine. Authentication is not required to exploit this vulnerability. The specific flaw exists within the parsing of mDNS resource records. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of the service account. Was ZDI-CAN-30982.

    Product
    NoMachine
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Oct 21, 2026NoMachine Named Pipe Incorrect Permission Assignment Local Privilege Escalation Vulnerability.CVE-2026-111184 · Other software · NoMachine · reported by zdi-disclosures@trendmicro.comHigh 7.8

    NoMachine Named Pipe Incorrect Permission Assignment Local Privilege Escalation Vulnerability. This vulnerability allows local attackers to escalate privileges on affected installations of NoMachine. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the NoMachine Device Service. The issue results from incorrect permissions on a named pipe. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of SYSTEM. Was ZDI-CAN-31213.

    Product
    NoMachine
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Aug 20, 2026NoMachine getstat Command Injection Remote Code Execution Vulnerability.CVE-2026-18264 · Other software · NoMachine · reported by zdi-disclosures@trendmicro.comHigh 8.8

    NoMachine getstat Command Injection Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of NoMachine. Authentication is required to exploit this vulnerability. The specific flaw exists within the web service, which listens on TCP port 4000 by default. The issue results from the lack of proper validation of a user-supplied string before using it to execute a system call. An attacker can leverage this vulnerability to execute code in the context of the service account. . Was ZDI-CAN-30634.

    Product
    NoMachine
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jun 10, 2026Improper Neutralization of Argument Delimiters in a Command ('Argument Injection') vulnerability in Nomachine allows Argument Injection.This issue affects NomacCVE-2026-53694 · Other software · NoMachine · reported by 5a6e4751-2f3f-4070-9419-94fb35b644e8High 7.3

    Improper Neutralization of Argument Delimiters in a Command ('Argument Injection') vulnerability in Nomachine allows Argument Injection.This issue affects Nomachine: before 9.5.7, before 8.23.2.

    Product
    NoMachine
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Apr 10, 2026NoMachine Uncontrolled Search Path Element Local Privilege Escalation Vulnerability.CVE-2026-5055 · Other software · NoMachine · reported by zdi-disclosures@trendmicro.comHigh 7.8

    NoMachine Uncontrolled Search Path Element Local Privilege Escalation Vulnerability. This vulnerability allows local attackers to escalate privileges on affected installations of NoMachine. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the NoMachine Device Server. The product loads a library from an unsecured location. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of SYSTEM. Was ZDI-CAN-28494.

    Product
    NoMachine
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Apr 10, 2026NoMachine External Control of File Path Local Privilege Escalation Vulnerability.CVE-2026-5054 · Other software · NoMachine · reported by zdi-disclosures@trendmicro.comHigh 7.8

    NoMachine External Control of File Path Local Privilege Escalation Vulnerability. This vulnerability allows local attackers to escalate privileges on affected installations of NoMachine. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the handling of command line parameters. The issue results from the lack of proper validation of a user-supplied path prior to using it in file operations. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of root. Was ZDI-CAN-28630.

    Product
    NoMachine
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Apr 10, 2026NoMachine External Control of File Path Arbitrary File Deletion Vulnerability.CVE-2026-5053 · Other software · NoMachine · reported by zdi-disclosures@trendmicro.comHigh 7.1

    NoMachine External Control of File Path Arbitrary File Deletion Vulnerability. This vulnerability allows local attackers to delete arbitrary files on affected installations of NoMachine. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the handling of environment variables. The issue results from the lack of proper validation of a user-supplied path prior to using it in file operations. An attacker can leverage this vulnerability to delete files in the context of root. Was ZDI-CAN-28644.

    Product
    NoMachine
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Sep 2, 2025NoMachine Uncontrolled Search Path Element Local Privilege Escalation Vulnerability.CVE-2025-8614 · Other software · NoMachine · reported by zdi-disclosures@trendmicro.comHigh 7.8

    NoMachine Uncontrolled Search Path Element Local Privilege Escalation Vulnerability. This vulnerability allows local attackers to escalate privileges on affected installations of NoMachine. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the configuration of OpenSSL. The product loads an OpenSSL configuration file from an unsecured location. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of the service account. Was ZDI-CAN-26766.

    Product
    NoMachine
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Nov 22, 2024NoMachine Uncontrolled Search Path Element Local Privilege Escalation Vulnerability.CVE-2024-7253 · Other software · NoMachine · reported by zdi-disclosures@trendmicro.comHigh 7.8

    NoMachine Uncontrolled Search Path Element Local Privilege Escalation Vulnerability. This vulnerability allows local attackers to escalate privileges on affected installations of NoMachine. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within nxnode.exe. The process loads a library from an unsecured location. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of SYSTEM. . Was ZDI-CAN-24039.

    Product
    NoMachine
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Aug 4, 2023An arbitrary file overwrite vulnerability in NoMachine Free Edition and Enterprise Client for macOS before v8.8.1 allows attackers to overwrite root-owned filesCVE-2023-39107 · Other software · nomachine · reported by MITRECritical 9.1

    An arbitrary file overwrite vulnerability in NoMachine Free Edition and Enterprise Client for macOS before v8.8.1 allows attackers to overwrite root-owned files by using hardlinks.

    Product
    enterprise_client
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Feb 3, 2023An issue in NoMachine before v8.2.3 allows attackers to execute arbitrary commands via a crafted .nxs file.CVE-2022-48074 · Other software · Nomachine · reported by MITREMedium 5.3

    An issue in NoMachine before v8.2.3 allows attackers to execute arbitrary commands via a crafted .nxs file.

    Product
    Nomachine
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jun 29, 2022Incorrect permissions for the folder C:\ProgramData\NoMachine\var\uninstall of Nomachine v7.9.2 allows attackers to perform a DLL hijacking attack and execute aCVE-2022-34043 · Other software · Nomachine · reported by MITREHigh 7.3

    Incorrect permissions for the folder C:\ProgramData\NoMachine\var\uninstall of Nomachine v7.9.2 allows attackers to perform a DLL hijacking attack and execute arbitrary code.

    Product
    Nomachine
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Apr 28, 2022NoMachine for Windows prior to version 6.15.1 and 7.5.2 suffer from local privilege escalation due to the lack of safe DLL loading.CVE-2021-33436 · Other software · Nomachine · reported by MITREHigh 7.3

    NoMachine for Windows prior to version 6.15.1 and 7.5.2 suffer from local privilege escalation due to the lack of safe DLL loading. This vulnerability allows local non-privileged users to perform DLL Hijacking via any writable directory listed under the system path and ultimately execute code as NT AUTHORITY\SYSTEM.

    Product
    Nomachine
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Dec 7, 2021NoMachine Enterprise Client is affected by Integer Overflow.CVE-2021-42986 · Other software · Nomachine · reported by MITREHigh 8.8

    NoMachine Enterprise Client is affected by Integer Overflow. IOCTL Handler 0x22001B in the NoMachine Enterprise Client above 4.0.346 and below 7.7.4 allow local attackers to execute arbitrary code in kernel mode or cause a denial of service (memory corruption and OS crash) via specially crafted I/O Request Packet.

    Product
    Enterprise Client
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Dec 7, 2021NoMachine Enterprise Client is affected by Buffer Overflow.CVE-2021-42983 · Other software · Nomachine · reported by MITREHigh 8.8

    NoMachine Enterprise Client is affected by Buffer Overflow. IOCTL Handler 0x22001B in the NoMachine Enterprise Client above 4.0.346 and below 7.7.4 allow local attackers to execute arbitrary code in kernel mode or cause a denial of service (memory corruption and OS crash) via specially crafted I/O Request Packet.

    Product
    Enterprise Client
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Dec 7, 2021NoMachine Cloud Server is affected by Buffer Overflow.CVE-2021-42980 · Other software · Nomachine · reported by MITREHigh 8.8

    NoMachine Cloud Server is affected by Buffer Overflow. IOCTL Handler 0x22001B in the NoMachine Cloud Server above 4.0.346 and below 7.7.4 allow local attackers to execute arbitrary code in kernel mode or cause a denial of service (memory corruption and OS crash) via specially crafted I/O Request Packet.

    Product
    Cloud Server
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Dec 7, 2021NoMachine Cloud Server is affected by Integer Overflow.CVE-2021-42979 · Other software · Nomachine · reported by MITREHigh 8.8

    NoMachine Cloud Server is affected by Integer Overflow. IOCTL Handler 0x22001B in the NoMachine Cloud Server above 4.0.346 and below 7.7.4 allow local attackers to execute arbitrary code in kernel mode or cause a denial of service (memory corruption and OS crash) via specially crafted I/O Request Packet.

    Product
    Cloud Server
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Dec 7, 2021NoMachine Enterprise Desktop is affected by Integer Overflow.CVE-2021-42977 · Other software · Nomachine · reported by MITREHigh 8.8

    NoMachine Enterprise Desktop is affected by Integer Overflow. IOCTL Handler 0x22001B in the NoMachine Enterprise Desktop above 4.0.346 and below 7.7.4 allow local attackers to execute arbitrary code in kernel mode or cause a denial of service (memory corruption and OS crash) via specially crafted I/O Request Packet.

    Product
    Enterprise Desktop
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Dec 7, 2021NoMachine Enterprise Desktop is affected by Buffer Overflow.CVE-2021-42976 · Other software · Nomachine · reported by MITREHigh 8.8

    NoMachine Enterprise Desktop is affected by Buffer Overflow. IOCTL Handler 0x22001B in the NoMachine Enterprise Desktop above 4.0.346 and below 7.7.4 allow local attackers to execute arbitrary code in kernel mode or cause a denial of service (memory corruption and OS crash) via specially crafted I/O Request Packet.

    Product
    Enterprise Desktop
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Dec 7, 2021NoMachine Server is affected by Integer Overflow.CVE-2021-42973 · Other software · Nomachine · reported by MITREHigh 8.8

    NoMachine Server is affected by Integer Overflow. IOCTL Handler 0x22001B in the NoMachine Server above 4.0.346 and below 7.7.4 allow local attackers to execute arbitrary code in kernel mode or cause a denial of service (memory corruption and OS crash) via specially crafted I/O Request Packet.

    Product
    Server
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Dec 7, 2021NoMachine Server is affected by Buffer Overflow.CVE-2021-42972 · Other software · Nomachine · reported by MITREHigh 8.8

    NoMachine Server is affected by Buffer Overflow. IOCTL Handler 0x22001B in the NoMachine Server above 4.0.346 and below 7.7.4 allow local attackers to execute arbitrary code in kernel mode or cause a denial of service (memory corruption and OS crash) via specially crafted I/O Request Packet.

    Product
    Server
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Dec 10, 2018The nxfs.sys driver in the DokanFS library 0.6.0 in NoMachine before 6.4.6 on Windows 10 allows local users to cause a denial of service (BSOD) because uninitiaCVE-2018-20029 · Other software · Dokan-dev · reported by MITREMedium 5.5

    The nxfs.sys driver in the DokanFS library 0.6.0 in NoMachine before 6.4.6 on Windows 10 allows local users to cause a denial of service (BSOD) because uninitialized memory can be read.

    Product
    Dokany
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Oct 15, 2018NoMachine before 5.3.27 and 6.x before 6.3.6 allows attackers to gain privileges via a Trojan horse wintab32.dll file located in the same directory as a .nxs fiCVE-2018-17980 · Other software · Nomachine · reported by MITREHigh 7.8

    NoMachine before 5.3.27 and 6.x before 6.3.6 allows attackers to gain privileges via a Trojan horse wintab32.dll file located in the same directory as a .nxs file, as demonstrated by a scenario where the .nxs file and the DLL are in the current working directory, and the Trojan horse code is executed. (The directory could, in general, be on a local filesystem or a network share.).

    Product
    Nomachine
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Sep 4, 2018A vulnerability in NoMachine App for Android 5.0.63 and earlier allows attackers to alter environment variables via unspecified vectors.CVE-2018-0664 · Other software · NoMachine S.a r.l. · reported by vultures@jpcert.or.jpCritical 9.8

    A vulnerability in NoMachine App for Android 5.0.63 and earlier allows attackers to alter environment variables via unspecified vectors.

    Product
    NoMachine App for Android
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Feb 28, 2018An uninitialised stack variable in the nxfuse component that is part of the Open Source DokanFS library shipped with NoMachine 6.0.66_2 and earlier allows a locCVE-2018-6947 · Other software · Nomachine · reported by MITREHigh 7.8

    An uninitialised stack variable in the nxfuse component that is part of the Open Source DokanFS library shipped with NoMachine 6.0.66_2 and earlier allows a local low privileged user to gain elevation of privileges on Windows 7 (32 and 64bit), and denial of service for Windows 8 and 10.

    Product
    Nomachine
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Aug 29, 2017An unspecified server utility in NoMachine before 5.3.10 on Mac OS X and Linux allows authenticated users to gain privileges by gaining access to local files.CVE-2017-12763 · Other software · Nomachine · reported by MITREHigh 8.8

    An unspecified server utility in NoMachine before 5.3.10 on Mac OS X and Linux allows authenticated users to gain privileges by gaining access to local files.

    Product
    Nomachine
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Sep 19, 2012nxapplet.jar in No Machine NX Web Companion 3.x and earlier does not properly verify the authenticity of updates, which allows user-assisted remote attackers toCVE-2012-5003 · Other software · Nomachine · reported by MITREMedium 6.8

    nxapplet.jar in No Machine NX Web Companion 3.x and earlier does not properly verify the authenticity of updates, which allows user-assisted remote attackers to execute arbitrary code via a crafted (1) SiteUrl or (2) RedirectUrl parameter that points to a Trojan Horse client.zip update file.

    Product
    NX Web Companion
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Oct 4, 2011Unspecified vulnerability in nxconfigure.sh in NoMachine NX Node 3.x before 3.5.0-4 and NX Server 3.x before 3.5.0-5 allows local users to read arbitrary files CVE-2011-3977 · Other software · Nomachine · reported by MITREHigh 7.2

    Unspecified vulnerability in nxconfigure.sh in NoMachine NX Node 3.x before 3.5.0-4 and NX Server 3.x before 3.5.0-5 allows local users to read arbitrary files via unknown vectors.

    Product
    NX Node
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.
  • Jan 31, 2007nxconfigure.sh in NoMachine NX Server before 2.1.0-18 does not validate the invoking user, which allows local users to modify server configuration keys in /usr/CVE-2007-0625 · Other software · Nomachine · reported by MITREMedium 4.9

    nxconfigure.sh in NoMachine NX Server before 2.1.0-18 does not validate the invoking user, which allows local users to modify server configuration keys in /usr/NX/etc/server.cfg, resulting in an unspecified denial of service.

    Product
    NX Server
    What to do
    Apply the vendor’s update. The NVD record links to the advisory.

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.

Weekly security brief

The flaws that hit local websites, every Friday.

One short email: what got exploited this week, which WordPress plugins broke, and what to check. Unsubscribe in one click.

Get in touch

Tell us what you're building.

A website, your marketing, a security check, an app, or the thing you've been running out of a spreadsheet for three years. A few lines is plenty.

01The person who'll do the work writes back
02A short call, then a written plan with the price
03Nothing starts until you say yes
04Hacked or down right now? Call, and we pick up the same day
843-331-6339

Not ready to talk yet? Run the free website check and see what Google sees.

What do you need?
Build
Grow
Protect
Urgent

No newsletter, no sales sequence. Just a reply.