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Vulnerability record · CVE-2013-5603 · published 30 October 2013

CVE-2013-5603: Mozilla thunderbird vulnerability

Mozilla · Thunderbird

Use-after-free vulnerability in the nsContentUtils::ContentIsHostIncludingDescendantOf function in Mozilla Firefox before 25.0, Firefox ESR 24.x before 24.1, Thunderbird before 24.1, and SeaMonkey before 2.22 allows remote attackers to execute arbitrary code or cause a denial of service (heap memory corruption) via vectors involving HTML document templates.

10.0 CVSS 2.0 High EPSS 5.4% · top 7.6%
10.0CVSS 2.0 base score
5.4%EPSS exploitation probability, 30 days
NoNot in CISA KEV
4Affected product versions listed by NVD
12References
16 Jun 2026Last modified by NVD

Description

Use-after-free vulnerability in the nsContentUtils::ContentIsHostIncludingDescendantOf function in Mozilla Firefox before 25.0, Firefox ESR 24.x before 24.1, Thunderbird before 24.1, and SeaMonkey before 2.22 allows remote attackers to execute arbitrary code or cause a denial of service (heap memory corruption) via vectors involving HTML document templates.

AV:N/AC:L/Au:N/C:C/I:C/A:C

Affected products

4 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://lists.opensuse.org/opensuse-security-announce/2013-11/msg00005.html
http://lists.opensuse.org/opensuse-security-announce/2013-11/msg00006.html
http://www.mozilla.org/security/announce/2013/mfsa2013-102.html Vendor Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=916404
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A19302
https://security.gentoo.org/glsa/201504-01
http://lists.opensuse.org/opensuse-security-announce/2013-11/msg00005.html
http://lists.opensuse.org/opensuse-security-announce/2013-11/msg00006.html
http://www.mozilla.org/security/announce/2013/mfsa2013-102.html Vendor Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=916404
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A19302
https://security.gentoo.org/glsa/201504-01

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2013-5603), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.