How severe is CVE-2010-1166?

CVE-2010-1166 has a CVSS 2.0 base score of 7.1, rated high severity.

Is CVE-2010-1166 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (92nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2010-1166?

CVE-2010-1166 affects X X.org. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2010-1166?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2010-1166 published?

CVE-2010-1166 was published on 2010-04-29 and last updated on 2026-06-16.

CVE-2010-1166

CVE-2010-1166 is a high-severity vulnerability in X X.org with a CVSS 2.0 base score of 7.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-189.

Key facts

Severity: High (CVSS 2.0 base score 7.1)
EPSS exploit prediction: 5% (92nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-189
Affected product: X X.org
Published: 2010-04-29
Last modified: 2026-06-16

Description

The fbComposite function in fbpict.c in the Render extension in the X server in X.Org X11R7.1 allows remote authenticated users to cause a denial of service (memory corruption and daemon crash) or possibly execute arbitrary code via a crafted request, related to an incorrect macro definition.

Frequently asked questions

What is CVE-2010-1166?: The fbComposite function in fbpict.c in the Render extension in the X server in X.Org X11R7.1 allows remote authenticated users to cause a denial of service (memory corruption and daemon crash) or possibly execute arbitrary code via a crafted request, related to an incorrect macro definition.
How severe is CVE-2010-1166?: CVE-2010-1166 has a CVSS 2.0 base score of 7.1, rated high severity.
Is CVE-2010-1166 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (92nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2010-1166?: CVE-2010-1166 affects X X.org. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2010-1166?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2010-1166 published?: CVE-2010-1166 was published on 2010-04-29 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:x:x.org:7.1:*:*:*:*:*:*:*

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