CVE-2011-2376

CVE-2011-2376 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.

Key facts

Description

Multiple unspecified vulnerabilities in the browser engine in Mozilla Firefox before 3.6.18 and Thunderbird before 3.1.11 allow remote attackers to cause a denial of service (memory corruption and application crash) or possibly execute arbitrary code via unknown vectors.

Frequently asked questions

What is CVE-2011-2376?
Multiple unspecified vulnerabilities in the browser engine in Mozilla Firefox before 3.6.18 and Thunderbird before 3.1.11 allow remote attackers to cause a denial of service (memory corruption and application crash) or possibly execute arbitrary code via unknown vectors.
How severe is CVE-2011-2376?
CVE-2011-2376 has a CVSS 2.0 base score of 10.0, rated critical severity.
Is CVE-2011-2376 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (90th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2011-2376?
CVE-2011-2376 primarily affects Mozilla Firefox. In total, 192 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2011-2376?
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-2011-2376 published?
CVE-2011-2376 was published on 2011-06-30 and last updated on 2026-06-16.

References

Affected products (192)

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