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CVE Record

CVE-2009-1302: The browser engine in Mozilla Firefox 3.x before 3.0.9, Thunderbird before 2.0.0.22, and SeaMonkey before 1...

The browser engine in Mozilla Firefox 3.x before 3.0.9, Thunderbird before 2.0.0.22, and SeaMonkey before 1.1.16 allows remote attackers to cause a denial of service (application crash) and possibly trigger memory corruption via vectors related to (1) nsAsyncInstantiateEvent::Run, (2) nsStyleContext::Destroy, (3) nsComputedDOMStyle::GetWidth, (4) the xslt_attributeset_ImportSameName.html test case for the XSLT stylesheet compiler, (5) nsXULDocument::SynchronizeBroadcastListener, (6) IsBindingAncestor, (7) PL_DHashTableOperate and nsEditor::EndUpdateViewBatch, and (8) gfxSkipCharsIterator::SetOffsets, and other vectors.

UnknownCVSS not scoredNot KEV-listedUpdated
Glexia's TakeAutomated analysis

Security readout for executives and security teams

This old Mozilla browser-engine flaw could crash affected Firefox, Thunderbird, or SeaMonkey clients and may involve memory corruption. Business urgency is mainly for legacy systems still running these versions; modern installations should not be affected if they are fully updated. Exposure is likely limited to legacy desktops, kiosks, or servers with old Mozilla packages from 2009-era distributions. Review any embedded systems, long-lived VDI images, and unsupported Linux builds that may still include vulnerable Firefox, Thunderbird, or SeaMonkey versions. Treat as a legacy exposure cleanup item, not an emergency, unless old Mozilla clients are still used in business workflows. Prioritize removal or upgrade on systems that browse the web, process untrusted email, or support critical operations. Mitigation focus: Update Firefox to 3.0.9 or later if still present.; Update Thunderbird to 2.0.0.22 or later if still present.; Update SeaMonkey to 1.1.16 or later if still present..

Prepared

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

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0CVSS vectors
0Timeline events
0ADP providers
17Source links

CVSS and timeline data

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Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/an/an/aListed
Weakness

CWE details

No CWE listed

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