What’s Vulnerable › Vulnerabilities

CVE-2013-5603

• Severity: critical (CVSS 10.0 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 5.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2013-10-30 · updated 2026-06-16

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.

Affected products

• Mozilla Firefox: through 24.0; 24.0, 24.0.1, 24.0.2, 19.0, 19.0.1, 19.0.2 (+6)
• Mozilla Seamonkey: through 2.22; 2.0, 2.0-alpha_1, 2.0-alpha_2, 2.0-alpha_3, 2.0-beta_1, 2.0-beta_2 (+97)
• Mozilla Thunderbird: through 24.0.1; 17.0, 17.0.1, 17.0.2, 17.0.3, 17.0.4, 17.0.5 (+4)
• Mozilla Thunderbird ESR: 17.0.9

References

• 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
• 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
• 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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