How severe is CVE-2012-2118?

CVE-2012-2118 has a CVSS 2.0 base score of 10.0, rated critical severity.

Is CVE-2012-2118 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (84th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2012-2118?

CVE-2012-2118 affects X.org X11. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2012-2118?

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

When was CVE-2012-2118 published?

CVE-2012-2118 was published on 2012-05-18 and last updated on 2026-06-16.

CVE-2012-2118

CVE-2012-2118 is a critical-severity vulnerability in X.org X11 with a CVSS 2.0 base score of 10.0. 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-20.

Key facts

Severity: Critical (CVSS 2.0 base score 10.0)
EPSS exploit prediction: 3% (84th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: X.org X11
Published: 2012-05-18
Last modified: 2026-06-16

Description

Format string vulnerability in the LogVHdrMessageVerb function in os/log.c in X.Org X11 1.11 allows attackers to cause a denial of service or possibly execute arbitrary code via format string specifiers in an input device name.

Frequently asked questions

What is CVE-2012-2118?: Format string vulnerability in the LogVHdrMessageVerb function in os/log.c in X.Org X11 1.11 allows attackers to cause a denial of service or possibly execute arbitrary code via format string specifiers in an input device name.
How severe is CVE-2012-2118?: CVE-2012-2118 has a CVSS 2.0 base score of 10.0, rated critical severity.
Is CVE-2012-2118 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (84th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2012-2118?: CVE-2012-2118 affects X.org X11. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2012-2118?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2012-2118 published?: CVE-2012-2118 was published on 2012-05-18 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:x.org:x11:1.11:*:*:*:*:*:*:*

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