What’s Vulnerable › Vulnerabilities

CVE-2012-0459

• Severity: high (CVSS 7.5 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 3.9% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2012-03-14 · updated 2026-06-16
• Weakness: CWE-264

Description

The Cascading Style Sheets (CSS) implementation in Mozilla Firefox 4.x through 10.0, Firefox ESR 10.x before 10.0.3, Thunderbird 5.0 through 10.0, Thunderbird ESR 10.x before 10.0.3, and SeaMonkey before 2.8 allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via dynamic modification of a keyframe followed by access to the cssText of the keyframe.

Affected products

• Mozilla Firefox: 4.0, 4.0-beta1, 4.0-beta10, 4.0-beta11, 4.0-beta12, 4.0-beta2 (+20)
• Mozilla Firefox ESR: 10.1, 10.2
• Mozilla Seamonkey: through 2.7; 1.0, 1.0-alpha, 1.0-beta, 1.0.1, 1.0.2, 1.0.3 (+93)
• Mozilla Thunderbird: 5.0, 6.0, 6.0.1, 6.0.2, 7.0, 7.0.1 (+3)
• Mozilla Thunderbird ESR: 10.0, 10.0.1, 10.0.2

References

• http://lists.opensuse.org/opensuse-security-announce/2012-03/msg00014.html
• http://lists.opensuse.org/opensuse-updates/2012-03/msg00042.html
• http://rhn.redhat.com/errata/RHSA-2012-0387.html
• http://rhn.redhat.com/errata/RHSA-2012-0388.html
• http://secunia.com/advisories/48359
• http://secunia.com/advisories/48402
• http://secunia.com/advisories/48496
• http://secunia.com/advisories/48513
• http://secunia.com/advisories/48553
• http://secunia.com/advisories/48561
• http://secunia.com/advisories/48629
• http://secunia.com/advisories/49055

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