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.
8 results
Oct 1, 2026Fortra BoKS Manager contains an out-of-bounds read vulnerability in the custom TLS ClientHello parser used by boks_portmux.CVE-2026-79896 · Other software · Fortra · reported by df4dee71-de3a-4139-9588-11b62fe6c0ffHigh 7.5
Fortra BoKS Manager contains an out-of-bounds read vulnerability in the custom TLS ClientHello parser used by boks_portmux. A remote unauthenticated attacker can submit a malformed ClientHello and terminate boks_portmux. Although the daemon is normally restarted automatically, repeated requests can sustain the service interruption.
- Product
- BoKS Manager
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Jun 9, 2026A security vulnerability has been detected in tmux up to 3.6a.CVE-2026-11623 · Other software · reported by VulDBLow 1.1
A security vulnerability has been detected in tmux up to 3.6a. Affected is the function image_free of the file image.c. Such manipulation leads to use after free. Local access is required to approach this attack. This attack is characterized by high complexity. The exploitability is told to be difficult. The exploit has been disclosed publicly and may be used. Upgrading to version 3.7-rc is able to address this issue. The name of the patch is fc6d94a9f8a593bd8b7031650802084385d4ee03. The affected component should be upgraded.
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordgist.github.comgithub.com
Oct 22, 2023iTerm2 before 3.4.20 allow (potentially remote) code execution because of mishandling of certain escape sequences related to tmux integration.CVE-2023-46300 · Other software · Iterm2 · reported by MITRECritical 9.8
iTerm2 before 3.4.20 allow (potentially remote) code execution because of mishandling of certain escape sequences related to tmux integration.
- Product
- Iterm2
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordblog.solidsnail.comgithub.com
Nov 5, 2020In tmux before version 3.1c the function input_csi_dispatch_sgr_colon() in file input.c contained a stack-based buffer-overflow that can be exploited by terminaCVE-2020-27347 · Other software · tmux · reported by security@ubuntu.comHigh 8.8
In tmux before version 3.1c the function input_csi_dispatch_sgr_colon() in file input.c contained a stack-based buffer-overflow that can be exploited by terminal output.
- Product
- tmux
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordgithub.comraw.githubusercontent.com
Oct 9, 2019A vulnerability exists in the way that iTerm2 integrates with tmux's control mode, which may allow an attacker to execute arbitrary commands by providing maliciCVE-2019-9535 · Other software · iTerm2 · reported by cret@cert.orgCritical 9.8
A vulnerability exists in the way that iTerm2 integrates with tmux's control mode, which may allow an attacker to execute arbitrary commands by providing malicious output to the terminal. This affects versions of iTerm2 up to and including 3.3.5. This vulnerability may allow an attacker to execute arbitrary commands on their victim's computer by providing malicious output to the terminal. It could be exploited using command-line utilities that print attacker-controlled content.
- Product
- iTerm2
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordblog.mozilla.orggroups.google.com
Jun 2, 2015GNU Parallel before 20150422, when using (1) --pipe, (2) --tmux, (3) --cat, (4) --fifo, or (5) --compress, allows local users to write to arbitrary files via a CVE-2015-4155 · Other software · GNU · reported by MITRELow 3.6
GNU Parallel before 20150422, when using (1) --pipe, (2) --tmux, (3) --cat, (4) --fifo, or (5) --compress, allows local users to write to arbitrary files via a symlink attack on a temporary file.
- Product
- Parallel
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordlists.gnu.orglists.gnu.org
Apr 18, 2011tmux 1.3 and 1.4 does not properly drop group privileges, which allows local users to gain utmp group privileges via a filename to the -S command-line option.CVE-2011-1496 · Other software · Nicholas Marriott · reported by Red HatMedium 4.6
tmux 1.3 and 1.4 does not properly drop group privileges, which allows local users to gain utmp group privileges via a filename to the -S command-line option.
- Product
- Tmux
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordlists.fedoraproject.orglists.fedoraproject.org
May 29, 2008Stack-based buffer overflow in the Community Services Multiplexer (aka MUX or StMux.exe) in IBM Lotus Sametime 7.5.1 CF1 and earlier, and 8.x before 8.0.1, alloCVE-2008-2499 · Other software · IBM · reported by MITREHigh 7.5
Stack-based buffer overflow in the Community Services Multiplexer (aka MUX or StMux.exe) in IBM Lotus Sametime 7.5.1 CF1 and earlier, and 8.x before 8.0.1, allows remote attackers to execute arbitrary code via a crafted URL.
- Product
- Lotus Sametime
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordsecunia.comwww-1.ibm.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.
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.
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.
Not ready to talk yet? Run the free website check and see what Google sees.