Multiple integer overflows in the GLX extension in XFree86 4.0, X.Org X Window System (aka X11 or X) X11R6.7, and X.Org Server (aka xserver and xorg-server) before 1.16.3 allow remote authenticated users to cause a denial of service (crash) or possibly execute arbitrary code via a crafted request to the (1) __glXDisp_ReadPixels, (2) __glXDispSwap_ReadPixels, (3) __glXDisp_GetTexImage, (4) __glXDispSwap_GetTexImage, (5) GetSeparableFilter, (6) GetConvolutionFilter, (7) GetHistogram, (8) GetMinmax, (9) GetColorTable, (10) __glXGetAnswerBuffer, (11) __GLX_GET_ANSWER_BUFFER, (12) __glXMap1dReqSize, (13) __glXMap1fReqSize, (14) Map2Size, (15) __glXMap2dReqSize, (16) __glXMap2fReqSize, (17) __glXImageSize, or (18) __glXSeparableFilter2DReqSize function, which triggers an out-of-bounds read or write.
Conclusion & alert: CVE-2014-8093 is rated Moderate Risk (53.6/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 1.30%). Mandatory action: Review affected assets and schedule remediation.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2025-04-08 | 1.03% | 1.30% | +0.27% |
| 2 | 2025-03-30 | 2.76% | 1.03% | -1.73% |
| 3 | 2025-03-29 | — | 2.76% | — |
Full EPSS history (17 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 6.5 | 2.0 | MEDIUM |
|
8.0 | 6.4 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
not yet assigned | CVE-2014-8093 not yet assigned priority: Debian including 1 source packages (xorg-server), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2014-8093 |
gentoo
|
high | CVE-2014-8093: 1 GLSA(s) (201504-06), 1 atom(s) (x11-base/xorg-server); latest impact high. | https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2014-8093 |
redhat
|
high | — | https://access.redhat.com/security/cve/CVE-2014-8093 |
ubuntu
|
medium | CVE-2014-8093 medium priority: Ubuntu including 2 source packages (xorg-server, xorg-server-lts-trusty), 10 status rows across 5 suites (lucid, precise, trusty, upstream, utopic): released 5, DNE 3, ignored 1, needs-triage 1. | https://ubuntu.com/security/CVE-2014-8093 |
: <a href="http://cwe.mitre.org/data/definitions/190.html">CWE-190: Integer Overflow or Wraparound</a>