CVE-2008-5021: n/a vulnerability

CVE-2008-5021: nsFrameManager in Firefox 3.x before 3.0.4, Firefox 2.x before 2.0.0.18, Thunderbird 2.x before 2.0.0.18, a...

nsFrameManager in Firefox 3.x before 3.0.4, Firefox 2.x before 2.0.0.18, Thunderbird 2.x before 2.0.0.18, and SeaMonkey 1.x before 1.1.13 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code by modifying properties of a file input element while it is still being initialized, then using the blur method to access uninitialized memory.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 7, 2024, 10:40 UTC (UTC+00:00)

Security readout for executives and security teams

This is an old Mozilla browser and mail-client memory safety flaw. A malicious webpage or HTML content could crash affected software and may allow code execution. It matters mainly where legacy Firefox, Thunderbird, or SeaMonkey versions remain installed. Exposure is most likely on obsolete systems running Firefox before 3.0.4 or 2.0.0.18, Thunderbird before 2.0.0.18, or SeaMonkey before 1.1.13. Treat as a legacy exposure cleanup item unless old Mozilla software is still present. If found, prioritize removal or update because the reported impact includes possible code execution. Mitigation focus: Upgrade Firefox, Thunderbird, and SeaMonkey to versions at or above the fixed releases.; Apply operating system vendor updates from Debian, Red Hat, Fedora, Mandriva, SUSE, or Sun where relevant.; Remove or isolate unsupported legacy Mozilla applications that cannot be updated..

Prepared: Jun 28, 2026, 18:15 UTC (UTC+00:00)

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

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

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description · low confidence lookup

Execution behavior lookup

The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

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cve · low confidence lookup

CVE-2008-5021 mapping review

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Nov 13, 2008, 11:00 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors

0Timeline events

0ADP providers

5Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

CVE List V5 sourceCVE List V5
FEDORA-2008-9667CVE reference · vendor-advisory, x_refsource_FEDORA
FEDORA-2008-9669CVE reference · vendor-advisory, x_refsource_FEDORA
https://bugzilla.mozilla.org/show_bug.cgi?id=460002CVE reference · x_refsource_MISC
oval:org.mitre.oval:def:9642CVE reference · vdb-entry, signature

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

n/an/an/aListed

Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.