CVE-2014-8099

The XVideo extension in XFree86 4.0.0, X.Org X Window System (aka X11 or X) X11R6.7, and X.Org Server (aka xserver and xorg-server) before 1.16.3 allows remote authenticated users to cause a denial of service (out-of-bounds read or write) or possibly execute arbitrary code via a crafted length or index value to the (1) SProcXvQueryExtension, (2) SProcXvQueryAdaptors, (3) SProcXvQueryEncodings, (4) SProcXvGrabPort, (5) SProcXvUngrabPort, (6) SProcXvPutVideo, (7) SProcXvPutStill, (8) SProcXvGetVideo, (9) SProcXvGetStill, (10) SProcXvPutImage, (11) SProcXvShmPutImage, (12) SProcXvSelectVideoNotify, (13) SProcXvSelectPortNotify, (14) SProcXvStopVideo, (15) SProcXvSetPortAttribute, (16) SProcXvGetPortAttribute, (17) SProcXvQueryBestSize, (18) SProcXvQueryPortAttributes, (19) SProcXvQueryImageAttributes, or (20) SProcXvListImageFormats function.

Published: 2014-12-10 Last update: 2026-05-06 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2014-8099 is rated Moderate Risk (54.1/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 1.34%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2014-8099

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 2025-12-24 1.06% 1.34% +0.27%
2 2025-12-23 4.56% 1.06% -3.50%
3 2025-08-25 — 4.56% —

Full EPSS history (11 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2014-8099

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
6.5 2.0 MEDIUM
AV:N/AC:L/Au:S/C:P/I:P/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:S)
A single authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
 8.0 6.4 [email protected]

Weakness enumeration for CVE-2014-8099

OS Trackers for CVE-2014-8099

vendor priority summary link
debian not yet assigned CVE-2014-8099 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-2014-8099
gentoo high CVE-2014-8099: 1 GLSA(s) (201504-06), 1 atom(s) (x11-base/xorg-server); latest impact high. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2014-8099
redhat medium — https://access.redhat.com/security/cve/CVE-2014-8099
ubuntu medium CVE-2014-8099 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-2014-8099

Affected software / configurations for CVE-2014-8099

Vendor Product Version Raw CPE
x.org x11 6.7 cpe:2.3:a:x.org:x11:6.7:*:*:*:*:*:*:*
x.org x_server <= 1.16.2.99.901 cpe:2.3:a:x.org:x_server:*:*:*:*:*:*:*:*
x.org xfree86 4.0 cpe:2.3:a:x.org:xfree86:4.0:*:*:*:*:*:*:*

References for CVE-2014-8099

cvelogic Threat Intelligence