How severe is CVE-2012-0461?

CVE-2012-0461 has a CVSS 2.0 base score of 7.5, rated high severity.

Is CVE-2012-0461 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (87th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2012-0461?

CVE-2012-0461 primarily affects Mozilla Firefox. In total, 112 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2012-0461?

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-2012-0461 published?

CVE-2012-0461 was published on 2012-03-14 and last updated on 2026-06-16.

CVE-2012-0461

CVE-2012-0461 is a high-severity vulnerability in Mozilla Firefox with a CVSS 2.0 base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: High (CVSS 2.0 base score 7.5)
EPSS exploit prediction: 3% (87th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Mozilla Firefox
Published: 2012-03-14
Last modified: 2026-06-16

Description

Multiple unspecified vulnerabilities in the browser engine in Mozilla Firefox before 3.6.28 and 4.x through 10.0, Firefox ESR 10.x before 10.0.3, Thunderbird before 3.1.20 and 5.0 through 10.0, Thunderbird ESR 10.x before 10.0.3, and SeaMonkey before 2.8 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-2012-0461?: Multiple unspecified vulnerabilities in the browser engine in Mozilla Firefox before 3.6.28 and 4.x through 10.0, Firefox ESR 10.x before 10.0.3, Thunderbird before 3.1.20 and 5.0 through 10.0, Thunderbird ESR 10.x before 10.0.3, and SeaMonkey before 2.8 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-2012-0461?: CVE-2012-0461 has a CVSS 2.0 base score of 7.5, rated high severity.
Is CVE-2012-0461 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (87th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2012-0461?: CVE-2012-0461 primarily affects Mozilla Firefox. In total, 112 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2012-0461?: 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-2012-0461 published?: CVE-2012-0461 was published on 2012-03-14 and last updated on 2026-06-16.

References

Affected products (112)

cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:firefox:10.0:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:firefox:10.0.1:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:firefox:10.0.2:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:thunderbird_esr:10.0:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:thunderbird_esr:10.0.1:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:thunderbird_esr:10.0.2:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:seamonkey:-:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:seamonkey:1.0:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:seamonkey:1.0:alpha:*:*:*:*:*:*
cpe:2.3:a:mozilla:seamonkey:1.0:beta:*:*:*:*:*:*
cpe:2.3:a:mozilla:seamonkey:1.0.1:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:seamonkey:1.0.2:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:seamonkey:1.0.3:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:seamonkey:1.0.4:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:seamonkey:1.0.5:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:seamonkey:1.0.6:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:seamonkey:1.0.7:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:seamonkey:1.0.8:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:seamonkey:1.0.9:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:seamonkey:1.1:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:seamonkey:1.1:alpha:*:*:*:*:*:*
cpe:2.3:a:mozilla:seamonkey:1.1:beta:*:*:*:*:*:*
cpe:2.3:a:mozilla:seamonkey:1.1.1:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:seamonkey:1.1.2:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:seamonkey:1.1.3:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:seamonkey:1.1.4:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:seamonkey:1.1.5:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:seamonkey:1.1.6:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:seamonkey:1.1.7:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:seamonkey:1.1.8:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:seamonkey:1.1.9:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:seamonkey:1.1.10:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:seamonkey:1.1.11:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:seamonkey:1.1.12:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:seamonkey:1.1.13:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:seamonkey:1.1.14:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:seamonkey:1.1.15:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:seamonkey:1.1.16:*:*:*:*:*:*:*

More vulnerabilities in Mozilla Firefox

CVE-2026-4725 — Critical (CVSS 10.0): Sandbox escape due to use-after-free in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox 149…
CVE-2026-4692 — Critical (CVSS 10.0): Sandbox escape in the Responsive Design Mode component. This vulnerability was fixed in Firefox 149, Firefox ESR…
CVE-2026-4689 — Critical (CVSS 10.0): Sandbox escape due to incorrect boundary conditions, integer overflow in the XPCOM component. This vulnerability was…
CVE-2026-4688 — Critical (CVSS 10.0): Sandbox escape due to use-after-free in the Disability Access APIs component. This vulnerability was fixed in Firefox…
CVE-2026-2778 — Critical (CVSS 10.0): Sandbox escape due to incorrect boundary conditions in the DOM: Core & HTML component. This vulnerability was fixed in…
CVE-2026-2776 — Critical (CVSS 10.0): Sandbox escape due to incorrect boundary conditions in the Telemetry component in External Software. This vulnerability…

All CVEs affecting Mozilla Firefox →