How severe is CVE-2011-2992?

CVE-2011-2992 has a CVSS 2.0 base score of 10.0, rated critical severity.

Is CVE-2011-2992 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (88th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2011-2992?

CVE-2011-2992 primarily affects Mozilla Firefox. In total, 119 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2011-2992?

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-2011-2992 published?

CVE-2011-2992 was published on 2011-08-18 and last updated on 2026-06-16.

CVE-2011-2992

CVE-2011-2992 is a critical-severity vulnerability in Mozilla Firefox 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-119.

Key facts

Severity: Critical (CVSS 2.0 base score 10.0)
EPSS exploit prediction: 4% (88th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-119
Affected product: Mozilla Firefox
Published: 2011-08-18
Last modified: 2026-06-16

Description

The Ogg reader in the browser engine in Mozilla Firefox 4.x through 5, SeaMonkey 2.x before 2.3, Thunderbird before 6, and possibly other products allows remote attackers to cause a denial of service (memory corruption and application crash) or possibly execute arbitrary code via unspecified vectors.

Frequently asked questions

What is CVE-2011-2992?: The Ogg reader in the browser engine in Mozilla Firefox 4.x through 5, SeaMonkey 2.x before 2.3, Thunderbird before 6, and possibly other products allows remote attackers to cause a denial of service (memory corruption and application crash) or possibly execute arbitrary code via unspecified vectors.
How severe is CVE-2011-2992?: CVE-2011-2992 has a CVSS 2.0 base score of 10.0, rated critical severity.
Is CVE-2011-2992 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (88th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2011-2992?: CVE-2011-2992 primarily affects Mozilla Firefox. In total, 119 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2011-2992?: 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-2011-2992 published?: CVE-2011-2992 was published on 2011-08-18 and last updated on 2026-06-16.

References

Affected products (119)

cpe:2.3:a:mozilla:firefox:4.0:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:firefox:4.0:beta1:*:*:*:*:*:*
cpe:2.3:a:mozilla:firefox:4.0:beta10:*:*:*:*:*:*
cpe:2.3:a:mozilla:firefox:4.0:beta11:*:*:*:*:*:*
cpe:2.3:a:mozilla:firefox:4.0:beta12:*:*:*:*:*:*
cpe:2.3:a:mozilla:firefox:4.0:beta2:*:*:*:*:*:*
cpe:2.3:a:mozilla:firefox:4.0:beta3:*:*:*:*:*:*
cpe:2.3:a:mozilla:firefox:4.0:beta4:*:*:*:*:*:*
cpe:2.3:a:mozilla:firefox:4.0:beta5:*:*:*:*:*:*
cpe:2.3:a:mozilla:firefox:4.0:beta6:*:*:*:*:*:*
cpe:2.3:a:mozilla:firefox:4.0:beta7:*:*:*:*:*:*
cpe:2.3:a:mozilla:firefox:4.0:beta8:*:*:*:*:*:*
cpe:2.3:a:mozilla:firefox:4.0:beta9:*:*:*:*:*:*
cpe:2.3:a:mozilla:firefox:4.0.1:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:firefox:5.0:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:seamonkey:2.0:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:seamonkey:2.0:alpha_1:*:*:*:*:*:*
cpe:2.3:a:mozilla:seamonkey:2.0:alpha_2:*:*:*:*:*:*
cpe:2.3:a:mozilla:seamonkey:2.0:alpha_3:*:*:*:*:*:*
cpe:2.3:a:mozilla:seamonkey:2.0:beta_1:*:*:*:*:*:*
cpe:2.3:a:mozilla:seamonkey:2.0:beta_2:*:*:*:*:*:*
cpe:2.3:a:mozilla:seamonkey:2.0:rc1:*:*:*:*:*:*
cpe:2.3:a:mozilla:seamonkey:2.0:rc2:*:*:*:*:*:*
cpe:2.3:a:mozilla:seamonkey:2.0.1:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:seamonkey:2.0.2:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:seamonkey:2.0.3:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:seamonkey:2.0.4:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:seamonkey:2.0.5:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:seamonkey:2.0.6:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:seamonkey:2.0.7:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:seamonkey:2.0.8:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:seamonkey:2.0.9:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:seamonkey:2.0.10:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:seamonkey:2.0.11:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:seamonkey:2.1:alpha1:*:*:*:*:*:*
cpe:2.3:a:mozilla:seamonkey:2.1:alpha2:*:*:*:*:*:*
cpe:2.3:a:mozilla:seamonkey:2.1:alpha3:*:*:*:*:*:*
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:thunderbird:0.1:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:thunderbird:0.2:*:*:*:*:*:*:*

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