{"cve":"CVE-2012-0459","nvd":{"published":"2012-03-14T19:55:02.100","modified":"2026-06-16T23:37:19.377","status":"Modified","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.","cvss_v4":null,"cvss_v3":null,"cwes":["CWE-264"],"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"],"products":["mozilla:firefox","mozilla:firefox_esr","mozilla:seamonkey","mozilla:thunderbird","mozilla:thunderbird_esr"],"source":"nvd","synced_at":"2026-10-19T19:59:31.623151214+00:00"},"epss":{"cve":"CVE-2012-0459","score":0.03819,"percentile":0.90061,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}