What’s Vulnerable › Vulnerabilities

CVE-2013-0787

• Severity: critical (CVSS 9.3 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 6.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2013-03-11 · updated 2026-06-16
• Weakness: CWE-399

Description

Use-after-free vulnerability in the nsEditor::IsPreformatted function in editor/libeditor/base/nsEditor.cpp in Mozilla Firefox before 19.0.2, Firefox ESR 17.x before 17.0.4, Thunderbird before 17.0.4, Thunderbird ESR 17.x before 17.0.4, and SeaMonkey before 2.16.1 allows remote attackers to execute arbitrary code via vectors involving an execCommand call.

Affected products

• Mozilla Firefox: through 19.0.1; 19.0, 17.0, 17.0.1, 17.0.2, 17.0.3
• Mozilla Seamonkey: through 2.16; 2.16-beta1, 2.16-beta2, 2.16-beta3, 2.16-beta4, 2.16-beta5
• Mozilla Thunderbird: through 17.0.3; 17.0, 17.0.1, 17.0.2
• Mozilla Thunderbird ESR: 17.0, 17.0.1, 17.0.2, 17.0.3

References

• http://h30499.www3.hp.com/t5/HP-Security-Research-Blog/Pwn2Own-2013/ba-p/5981157
• http://lists.opensuse.org/opensuse-security-announce/2013-03/msg00010.html
• http://lists.opensuse.org/opensuse-security-announce/2013-03/msg00023.html
• http://lists.opensuse.org/opensuse-security-announce/2013-03/msg00025.html
• http://lists.opensuse.org/opensuse-security-announce/2013-03/msg00026.html
• http://lists.opensuse.org/opensuse-security-announce/2013-03/msg00028.html
• http://rhn.redhat.com/errata/RHSA-2013-0614.html
• http://rhn.redhat.com/errata/RHSA-2013-0627.html
• http://twitter.com/VUPEN/statuses/309505403631325184
• http://twitter.com/thezdi/statuses/309484730506698752
• http://www.debian.org/security/2013/dsa-2699
• http://www.mozilla.org/security/announce/2013/mfsa2013-29.html

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