How severe is CVE-2006-6101?

CVE-2006-6101 has a CVSS 2.0 base score of 6.6, rated medium severity.

Is CVE-2006-6101 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (30th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2006-6101?

CVE-2006-6101 primarily affects X.org. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2006-6101?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2006-6101 published?

CVE-2006-6101 was published on 2006-12-31 and last updated on 2026-06-16.

CVE-2006-6101

CVE-2006-6101 is a medium-severity vulnerability in X.org with a CVSS 2.0 base score of 6.6. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 2.0 base score 6.6)
EPSS exploit prediction: 0% (30th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: X.org
Published: 2006-12-31
Last modified: 2026-06-16

Description

Integer overflow in the ProcRenderAddGlyphs function in the Render extension for X.Org 6.8.2, 6.9.0, 7.0, and 7.1, and XFree86 X server, allows local users to execute arbitrary code via a crafted X protocol request that triggers memory corruption during processing of glyph management data structures.

Frequently asked questions

What is CVE-2006-6101?: Integer overflow in the ProcRenderAddGlyphs function in the Render extension for X.Org 6.8.2, 6.9.0, 7.0, and 7.1, and XFree86 X server, allows local users to execute arbitrary code via a crafted X protocol request that triggers memory corruption during processing of glyph management data structures.
How severe is CVE-2006-6101?: CVE-2006-6101 has a CVSS 2.0 base score of 6.6, rated medium severity.
Is CVE-2006-6101 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (30th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2006-6101?: CVE-2006-6101 primarily affects X.org. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2006-6101?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2006-6101 published?: CVE-2006-6101 was published on 2006-12-31 and last updated on 2026-06-16.

References

Affected products (5)

cpe:2.3:a:x.org:x.org:6.8.2:*:*:*:*:*:*:*
cpe:2.3:a:x.org:x.org:6.9.0:*:*:*:*:*:*:*
cpe:2.3:a:x.org:x.org:7.0:*:*:*:*:*:*:*
cpe:2.3:a:x.org:x.org:7.1:*:*:*:*:*:*:*
cpe:2.3:a:xfree86_project:xfree86:*:*:*:*:*:*:*:*

More vulnerabilities in X.org

CVE-2006-6102 — Critical (CVSS 10.0): Integer overflow in the ProcDbeGetVisualInfo function in the DBE extension for X.Org 6.8.2, 6.9.0, 7.0, and 7.1, and…
CVE-2010-4818 — High (CVSS 8.5): The GLX extension in X.Org xserver 1.7.7 allows remote authenticated users to cause a denial of service (server crash)…
CVE-2006-3739 — High (CVSS 7.2): Integer overflow in the CIDAFM function in X.Org 6.8.2 and XFree86 X server allows local users to execute arbitrary…
CVE-2006-3740 — High (CVSS 7.2): Integer overflow in the scan_cidfont function in X.Org 6.8.2 and XFree86 X server allows local users to execute…
CVE-2006-6103 — Medium (CVSS 6.6): Integer overflow in the ProcDbeSwapBuffers function in the DBE extension for X.Org 6.8.2, 6.9.0, 7.0, and 7.1, and…
CVE-2006-0197 — Medium (CVSS 5.0): The XClientMessageEvent struct used in certain components of X.Org 6.8.2 and earlier, possibly including (1) the X…

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