Is CVE-2012-3983 being actively exploited?

CVE-2012-3983 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2012-3983?

CVE-2012-3983 has a CVSS 2.0 base score of 10.0 (HIGH).

CVE-2012-3983

HIGH · CVSS 10.0EPSS 5.3%EU EUVD

Multiple unspecified vulnerabilities in the browser engine in Mozilla Firefox before 16.0, Thunderbird before 16.0, and SeaMonkey before 2.13 allow remote attackers to cause a denial of service (memory corruption and application crash) or possibly execute arbitrary code via unknown vectors.

Key facts

CVSS score: 10.0 (v2.0)
Severity: HIGH
CVSS vector: AV:N/AC:L/Au:N/C:C/I:C/A:C
Weakness (CWE): CWE-119
EPSS score: 5.3% (92th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2012-3927)
Published: October 10, 2012
NVD last modified: June 16, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2012-3927 in the EU Vulnerability Database. Last updated in EUVD on August 6, 2024.

View on the EU Vulnerability Database

Affected products

canonical / ubuntu linux
canonical / ubuntu linux
canonical / ubuntu linux
canonical / ubuntu linux
mozilla / firefox
mozilla / seamonkey
mozilla / thunderbird
suse / linux enterprise desktop
suse / linux enterprise desktop
suse / linux enterprise server
suse / linux enterprise server
suse / linux enterprise server

Certified products that may be affected

2 FIPS 140 or Common Criteria certified products, from automated matching by sec-certs.org.

SUSE Linux Enterprise Server 11 Service Pack 2 on IBM System z - SUSE Linux Products Gmbh - Common Criteria BSI-DSZ-CC-0852-2013 - archived
SUSE Linux Enterprise Server 11 Service Pack 2 including KVM virtualization - SUSE Linux Products Gmbh - Common Criteria BSI-DSZ-CC-0787-2013 - archived

References

http://lists.opensuse.org/opensuse-security-announce/2012-10/msg00010.html(Mailing List, Third Party Advisory)
http://secunia.com/advisories/50856(Broken Link)
http://secunia.com/advisories/50892(Broken Link)
http://secunia.com/advisories/50904(Broken Link)
http://secunia.com/advisories/50935(Broken Link)
http://secunia.com/advisories/50984(Broken Link)
http://secunia.com/advisories/55318(Broken Link)
http://www.mozilla.org/security/announce/2012/mfsa2012-74.html(Vendor Advisory)
http://www.ubuntu.com/usn/USN-1611-1(Third Party Advisory)
https://bugzilla.mozilla.org/show_bug.cgi?id=634444(Issue Tracking, Vendor Advisory)
https://bugzilla.mozilla.org/show_bug.cgi?id=762920(Issue Tracking, Vendor Advisory)
https://bugzilla.mozilla.org/show_bug.cgi?id=768313(Issue Tracking, Vendor Advisory)
https://bugzilla.mozilla.org/show_bug.cgi?id=790865(Issue Tracking, Vendor Advisory)
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A16901(Third Party Advisory)

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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