CVE-2011-2363: n/a vulnerability

CVE-2011-2363: Use-after-free vulnerability in the nsSVGPointList::AppendElement function in the implementation of SVG ele...

Use-after-free vulnerability in the nsSVGPointList::AppendElement function in the implementation of SVG element lists in Mozilla Firefox before 3.6.18, Thunderbird before 3.1.11, and SeaMonkey through 2.0.14 allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via vectors involving a user-supplied callback.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 6, 2024, 23:00 UTC (UTC+00:00)

Security readout for executives and security teams

A crafted SVG-related action could crash older Mozilla applications and may allow arbitrary code execution. The issue affects Firefox before 3.6.18, Thunderbird before 3.1.11, and SeaMonkey through 2.0.14. Business risk is mainly from legacy desktops, embedded browsers, or systems frozen on old packages. Exposure is likely limited to legacy Mozilla client installations or downstream packages predating the fixed versions. Modern managed fleets should verify absence of Firefox below 3.6.18, Thunderbird below 3.1.11, and SeaMonkey through 2.0.14 rather than assuming no residual installations exist. Prioritize this for legacy-risk reduction rather than emergency incident response. It is old and not KEV-listed, but the possible code-execution impact makes unmanaged obsolete clients unacceptable on business networks. Mitigation focus: Upgrade Firefox to 3.6.18 or later where still applicable.; Upgrade Thunderbird to 3.1.11 or later where still applicable.; Replace or isolate unsupported SeaMonkey 2.0.14 and earlier installations..

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

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CVE-2011-2363 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

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
https://bugzilla.mozilla.org/show_bug.cgi?id=648160CVE reference · x_refsource_CONFIRM
oval:org.mitre.oval:def:14046CVE 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

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