CVE-2011-2373: n/a vulnerability

CVE-2011-2373: Use-after-free vulnerability in Mozilla Firefox before 3.6.18 and 4.x through 4.0.1, Thunderbird before 3.1...

Use-after-free vulnerability in Mozilla Firefox before 3.6.18 and 4.x through 4.0.1, Thunderbird before 3.1.11, and SeaMonkey through 2.0.14, when JavaScript is disabled, allows remote attackers to execute arbitrary code via a crafted XUL document.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 6, 2024, 23:00 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 XUL document could trigger arbitrary code execution in affected Firefox, Thunderbird, or SeaMonkey versions when JavaScript is disabled. Business urgency is mainly legacy exposure: current environments should verify no unsupported Mozilla-era packages remain. Exposure is most likely in legacy desktops, embedded systems, archived virtual machines, or vendor appliances still shipping old Mozilla components. Normal modern Firefox, Thunderbird, and SeaMonkey installations should not match the listed affected versions. Treat this as high priority only where legacy Mozilla software still exists. It is a remote code execution issue, but it dates to 2011 and no active exploitation evidence is provided in the bundle. Mitigation focus: Upgrade affected Mozilla products to vendor-fixed or distribution-supported packages.; Remove unsupported Firefox, Thunderbird, and SeaMonkey versions from managed assets.; Review Mozilla and OS vendor advisories for exact fixed package versions..

Prepared: Jun 28, 2026, 00:52 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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Execution behavior lookup

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CVE-2011-2373 mapping review

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Jun 30, 2011, 16:00 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

4Source 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
oval:org.mitre.oval:def:14178CVE reference · vdb-entry, signature
https://bugzilla.mozilla.org/show_bug.cgi?id=617247CVE reference · x_refsource_CONFIRM
thunderbird-xul-code-exec(68133)CVE reference · vdb-entry, x_refsource_XF

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.