CVE-2005-2495: Multiple integer overflows in XFree86 before 4.3.0 allow user-assisted attackers to execute arbitrary code via

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MEDIUM 5.1DOWNGRADE

CVE-2005-2495 is a medium-severity flaw (CVSS 5.1) affecting xfree86. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Multiple integer overflows in XFree86 before 4.3.0 allow user-assisted attackers to execute arbitrary code via a crafted pixmap image.

Why this priority

EPSS top 10%: very likely to be exploited

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	5.1 (Medium)
EPSS exploit chance	3.9% (top 10%)
CISA exploited list	No
Weakness	CWE-189
Published	2005-09-15
Last modified	2026-06-16

Publisher (CNA): Red Hat, Inc. · Vendor: xfree86 project

Last updated 2026-06-16 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2005-09-15 20:03 UTCPublished CVE record published
2026-06-16 22:15 UTCUpdated Record last modified

xfree86 project xfree86 DOWNGRADE

Affected: 3.3.6 · 4.0.0 · 4.0.1 · 4.0.2 · 4.0.3 · 4.1.0 · 4.2.0 · 4.2.1

Fixed in: no fixed release known

Safe to downgrade to: a release before 3.3.6

1. Check installed version

apt-cache policy xfree86 || rpm -q xfree86 || xfree86 --version

2. No fixed release: DOWNGRADE to a release before 3.3.6 (Debian / Ubuntu)

apt-cache madison xfree86 sudo apt install xfree86=<VERSION_BEFORE_3.3.6> sudo apt-mark hold xfree86

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list xfree86 sudo dnf downgrade xfree86-<VERSION_BEFORE_3.3.6> sudo dnf versionlock add xfree86

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2005-2495?

xfree86: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2005-2495 being exploited?

CVE-2005-2495 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2005-2495 affect?

CVE-2005-2495 affects xfree86. Severity is medium (CVSS 5.1). Multiple integer overflows in XFree86 before 4.3.0 allow user-assisted attackers to execute arbitrary code via a crafted pixmap image.

How urgent is CVE-2005-2495?

Priority 40/100. EPSS top 10%: very likely to be exploited

Related CVEs

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CVE-2014-8099 MEDIUM 6.5 DOWNGRADE UPGRADE The XVideo extension in XFree86 4.0.0, X.Org X Window System (aka X11 or X) X11R6.7, and X.Org Server (aka xse
CVE-2014-8098 MEDIUM 6.5 MITIGATE UPGRADE The GLX extension in XFree86 4.0, X.Org X Window System (aka X11 or X) X11R6.7, and X.Org Server (aka xserver
CVE-2014-8093 MEDIUM 6.5 DOWNGRADE UPGRADE Multiple integer overflows in the GLX extension in XFree86 4.0, X.Org X Window System (aka X11 or X) X11R6.7,

References

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