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Heap-based buffer overflow in the utf16_to_isolatin1 function in Mozilla Firefox 4.x through 12.0, Firefox ESR 10.x before 10.0.5, Thunderbird 5.0 through 12.0, Thunderbird ESR 10.x before 10.0.5, and SeaMonkey before 2.10 allows remote attackers to execute arbitrary code via vectors that trigger a character-set conversion failure.
June 5, 2012
April 29, 2026
See which npm, PyPI, Go, and Maven packages are affected by CVE-2012-1947
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.