CVE-2013-0764: n/a vulnerability

CVE-2013-0764: The nsSOCKSSocketInfo::ConnectToProxy function in Mozilla Firefox before 18.0, Firefox ESR 17.x before 17.0...

The nsSOCKSSocketInfo::ConnectToProxy function in Mozilla Firefox before 18.0, Firefox ESR 17.x before 17.0.2, Thunderbird before 17.0.2, Thunderbird ESR 17.x before 17.0.2, and SeaMonkey before 2.15 does not ensure thread safety for SSL sessions, which allows remote attackers to execute arbitrary code via crafted data, as demonstrated by e-mail message data.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 6, 2024, 14:41 UTC (UTC+00:00)

Security readout for executives and security teams

This is an old Mozilla client vulnerability where specially crafted content could potentially run code on a vulnerable user’s system. The main business risk is from legacy Firefox, Thunderbird, or SeaMonkey installations that were never updated past the 2013 fixed releases. Exposure is most likely limited to legacy systems running Firefox before 18.0, Firefox ESR 17.x before 17.0.2, Thunderbird before 17.0.2, Thunderbird ESR 17.x before 17.0.2, or SeaMonkey before 2.15. Treat this as a legacy software cleanup issue with high impact if found. It should not drive emergency response unless vulnerable versions are still present, but any confirmed installation deserves prompt removal or update. Mitigation focus: Upgrade Mozilla products beyond the fixed versions named in the advisory sources.; Remove unsupported legacy Firefox, Thunderbird, and SeaMonkey installations from managed environments.; Check operating system vendor advisories for package-specific update guidance..

Prepared: Jun 24, 2026, 12:04 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-2013-0764 mapping review

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Jan 13, 2013, 20:00 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

3Source 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:16715CVE reference · vdb-entry, signature
https://bugzilla.mozilla.org/show_bug.cgi?id=804237CVE reference · x_refsource_CONFIRM

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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