CVE-2013-0763: n/a vulnerability

CVE-2013-0763: Use-after-free vulnerability in Mozilla Firefox before 18.0, Firefox ESR 17.x before 17.0.1, Thunderbird be...

Use-after-free vulnerability in Mozilla Firefox before 18.0, Firefox ESR 17.x before 17.0.1, Thunderbird before 17.0.2, Thunderbird ESR 17.x before 17.0.1, and SeaMonkey before 2.15 allows remote attackers to execute arbitrary code or cause a denial of service (heap memory corruption) via vectors related to Mesa drivers and a resized WebGL canvas.

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 that could let a malicious remote actor crash the application or potentially run code through memory corruption. It affects outdated Firefox, Thunderbird, and SeaMonkey versions. The bundle does not show active exploitation, but browser and mail-client code execution bugs can carry high endpoint risk when legacy software remains deployed. Exposure is most likely on legacy desktops, VDI images, kiosks, lab systems, or old Linux builds still running the affected Mozilla versions. Modern supported releases should not be assumed affected from this bundle alone. Prioritize remediation where affected versions remain on user workstations or systems that browse untrusted web content. This is primarily a legacy exposure issue, but potential code execution makes confirmed findings important. Mitigation focus: Upgrade affected Mozilla products to the fixed versions or later.; Use OS vendor security advisories for distro-packaged Mozilla updates.; Remove or retire unsupported Firefox, Thunderbird, and SeaMonkey builds..

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-2013-0763 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:17107CVE reference · vdb-entry, signature
https://bugzilla.mozilla.org/show_bug.cgi?id=791905CVE 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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