CVE-2009-2462

no score yetEPSS 5.4%

The browser engine in Mozilla Firefox before 3.0.12 and Thunderbird allows remote attackers to cause a denial of service (memory corruption and application crash) or possibly execute arbitrary code via vectors related to (1) the frame chain and synchronous events, (2) a SetMayHaveFrame assertion and nsCSSFrameConstructor::CreateFloatingLetterFrame, (3) nsCSSFrameConstructor::ConstructFrame, (4) the child list and initial reflow, (5) GetLastSpecialSibling, (6) nsFrameManager::GetPrimaryFrameFor and MathML, (7) nsFrame::GetBoxAscent, (8) nsCSSFrameConstructor::AdjustParentFrame, (9) nsDOMOfflineResourceList, and (10) nsContentUtils::ComparePosition.

EPSS: 5.4% chance of exploitation in the next 30 days; higher than 92% of CVEs (scores of 2026-10-31)
CWE: CWE-399
Published: 2009-07-22
Modified: 2026-06-16
Record from: the NVD, synced 2026-10-19

Affected

mozilla:firefox
mozilla:thunderbird

References

http://lists.opensuse.org/opensuse-security-announce/2009-07/msg00005.html
http://lists.opensuse.org/opensuse-security-announce/2009-08/msg00002.html
http://rhn.redhat.com/errata/RHSA-2009-1162.html
http://rhn.redhat.com/errata/RHSA-2009-1163.html
http://secunia.com/advisories/35914

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