What’s Vulnerable › Vulnerabilities

CVE-2012-1951

• Severity: critical (CVSS 10.0 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 5.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2012-07-18 · updated 2026-06-16
• Weakness: CWE-399

Description

Use-after-free vulnerability in the nsSMILTimeValueSpec::IsEventBased function in Mozilla Firefox 4.x through 13.0, Firefox ESR 10.x before 10.0.6, Thunderbird 5.0 through 13.0, Thunderbird ESR 10.x before 10.0.6, and SeaMonkey before 2.11 allows remote attackers to cause a denial of service (heap memory corruption) or possibly execute arbitrary code by interacting with objects used for SMIL Timing.

Affected products

• Mozilla Firefox: 4.0, 4.0-beta1, 4.0-beta10, 4.0-beta11, 4.0-beta12, 4.0-beta2 (+29)
• Mozilla Seamonkey: through 2.10; 1.0, 1.0-alpha, 1.0-beta, 1.0.1, 1.0.2, 1.0.3 (+62)
• Mozilla Thunderbird: 5.0, 6.0, 6.0.1, 6.0.2, 7.0, 7.0.1 (+11)
• Mozilla Thunderbird ESR: 10.0, 10.0.1, 10.0.2, 10.0.3, 10.0.4, 10.0.5

References

• http://lists.opensuse.org/opensuse-security-announce/2012-07/msg00011.html
• http://lists.opensuse.org/opensuse-security-announce/2012-07/msg00012.html
• http://lists.opensuse.org/opensuse-security-announce/2012-07/msg00013.html
• http://lists.opensuse.org/opensuse-security-announce/2012-07/msg00016.html
• http://osvdb.org/83997
• http://rhn.redhat.com/errata/RHSA-2012-1088.html
• http://secunia.com/advisories/49965
• http://secunia.com/advisories/49968
• http://secunia.com/advisories/49972
• http://secunia.com/advisories/49977
• http://secunia.com/advisories/49979
• http://secunia.com/advisories/49992

Get alerted when CVE-2012-1951 or the next vulnerability affects your stack