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.
9 results
Oct 27, 2026A malicious X server could send malformed RECORD EnableContext reolies that can cause a X client using the parse_reply_call_callback function in libXtst beforeCVE-2026-109088 · Other software · X.org · reported by meissner@suse.deMedium 6.5
A malicious X server could send malformed RECORD EnableContext reolies that can cause a X client using the parse_reply_call_callback function in libXtst before 1.2.6 to enter a endless loop.
- Product
- libXtst
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordgitlab.freedesktop.org
Sep 28, 2026An out-of-bounds read in libXtst's RECORD reply parser in libXtst before 1.2.6 could be used by malicious X servers to crash attached X clients.CVE-2026-94286 · Other software · x.org · reported by meissner@suse.deHigh 7.1
An out-of-bounds read in libXtst's RECORD reply parser in libXtst before 1.2.6 could be used by malicious X servers to crash attached X clients.
- Product
- libXtst
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordgitlab.freedesktop.org
Dec 13, 2016X.org libXtst before 1.2.3 allows remote X servers to cause a denial of service (infinite loop) via a reply in the (1) XRecordStartOfData, (2) XRecordEndOfData,CVE-2016-7952 · Other software · Fedoraproject · reported by security@opentext.comHigh 7.5
X.org libXtst before 1.2.3 allows remote X servers to cause a denial of service (infinite loop) via a reply in the (1) XRecordStartOfData, (2) XRecordEndOfData, or (3) XRecordClientDied category without a client sequence and with attached data.
- Product
- Fedora
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordopenwall.comopenwall.com
Dec 13, 2016Multiple integer overflows in X.org libXtst before 1.2.3 allow remote X servers to trigger out-of-bounds memory access operations by leveraging the lack of rangCVE-2016-7951 · Other software · Fedoraproject · reported by security@opentext.comCritical 9.8
Multiple integer overflows in X.org libXtst before 1.2.3 allow remote X servers to trigger out-of-bounds memory access operations by leveraging the lack of range checks.
- Product
- Fedora
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordopenwall.comopenwall.com
Oct 6, 2014Multiple unspecified vulnerabilities in libXtsol in Oracle Solaris 10 and 11.1 have unspecified impact and attack vectors related to "Buffer errors."CVE-2014-0397 · Other software · Oracle · reported by secalert_us@oracle.comHigh 10
Multiple unspecified vulnerabilities in libXtsol in Oracle Solaris 10 and 11.1 have unspecified impact and attack vectors related to "Buffer errors."
- Product
- Solaris
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordsecurityfocus.comblogs.oracle.com
Feb 15, 2014extensions/libxt_tcp.c in iptables through 1.4.21 does not match TCP SYN+FIN packets in --syn rules, which might allow remote attackers to bypass intended firewCVE-2012-2663 · Other software · Netfilter · reported by Red HatHigh 7.5
extensions/libxt_tcp.c in iptables through 1.4.21 does not match TCP SYN+FIN packets in --syn rules, which might allow remote attackers to bypass intended firewall restrictions via crafted packets. NOTE: the CVE-2012-6638 fix makes this issue less relevant.
- Product
- Iptables
- What to do
- Apply the vendor’s update. The NVD record links to the advisory.
Full record and what to do →NVD recordspinics.netbugzilla.redhat.com
Jun 15, 2013X.org libXt 1.1.3 and earlier does not check the return value of the XGetWindowProperty function, which allows X servers to trigger use of an uninitialized poinCVE-2013-2005 · Other software · X · reported by Red HatMedium 6.8
X.org libXt 1.1.3 and earlier does not check the return value of the XGetWindowProperty function, which allows X servers to trigger use of an uninitialized pointer and memory corruption via vectors related to the (1) ReqCleanup, (2) HandleSelectionEvents, (3) ReqTimedOut, (4) HandleNormal, and (5) HandleSelectionReplies functions.
- Product
- Libxt
- 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.opensuse.org
Jun 15, 2013Buffer overflow in X.org libXt 1.1.3 and earlier allows X servers to cause a denial of service (crash) and possibly execute arbitrary code via crafted length orCVE-2013-2002 · Other software · X · reported by Red HatMedium 6.8
Buffer overflow in X.org libXt 1.1.3 and earlier allows X servers to cause a denial of service (crash) and possibly execute arbitrary code via crafted length or index values to the _XtResourceConfigurationEH function.
- Product
- Libxt
- 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.opensuse.org
Jun 15, 2013Integer overflow in X.org libXtst 1.2.1 and earlier allows X servers to trigger allocation of insufficient memory and a buffer overflow via vectors related to tCVE-2013-2063 · Other software · X · reported by Red HatMedium 6.8
Integer overflow in X.org libXtst 1.2.1 and earlier allows X servers to trigger allocation of insufficient memory and a buffer overflow via vectors related to the XRecordGetContext function.
- Product
- Libxtst
- 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.opensuse.org
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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