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Vulnerability record · CVE-2012-4180 · published 10 October 2012

CVE-2012-4180: Mozilla firefox memory buffer overflow vulnerability

Mozilla · Firefox

Heap-based buffer overflow in the nsHTMLEditor::IsPrevCharInNodeWhitespace function in Mozilla Firefox before 16.0, Firefox ESR 10.x before 10.0.8, Thunderbird before 16.0, Thunderbird ESR 10.x before 10.0.8, and SeaMonkey before 2.13 allows remote attackers to execute arbitrary code via unspecified vectors.

9.3 CVSS 2.0 High EPSS 9.3% · top 4.8% CWE-119 · Memory buffer overflow
9.3CVSS 2.0 base score
9.3%EPSS exploitation probability, 30 days
NoNot in CISA KEV
13Affected product versions listed by NVD
40References
16 Jun 2026Last modified by NVD

Description

Heap-based buffer overflow in the nsHTMLEditor::IsPrevCharInNodeWhitespace function in Mozilla Firefox before 16.0, Firefox ESR 10.x before 10.0.8, Thunderbird before 16.0, Thunderbird ESR 10.x before 10.0.8, and SeaMonkey before 2.13 allows remote attackers to execute arbitrary code via unspecified vectors.

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

Affected products

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

References

LinkTags
http://lists.opensuse.org/opensuse-security-announce/2012-10/msg00010.html Mailing ListThird Party Advisory
http://osvdb.org/86099 Broken Link
http://rhn.redhat.com/errata/RHSA-2012-1351.html Third Party Advisory
http://secunia.com/advisories/50856 Third Party Advisory
http://secunia.com/advisories/50892 Third Party Advisory
http://secunia.com/advisories/50904 Third Party Advisory
http://secunia.com/advisories/50935 Third Party Advisory
http://secunia.com/advisories/50936 Third Party Advisory
http://secunia.com/advisories/50984 Third Party Advisory
http://secunia.com/advisories/51181 Third Party Advisory
http://secunia.com/advisories/55318 Third Party Advisory
http://www.debian.org/security/2012/dsa-2565 Third Party Advisory
http://www.debian.org/security/2012/dsa-2569 Third Party Advisory
http://www.debian.org/security/2012/dsa-2572 Third Party Advisory
http://www.mandriva.com/security/advisories?name=MDVSA-2012:163 Third Party Advisory
http://www.mozilla.org/security/announce/2012/mfsa2012-85.html Vendor Advisory
http://www.ubuntu.com/usn/USN-1611-1 Third Party Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=785720 Issue Tracking
https://exchange.xforce.ibmcloud.com/vulnerabilities/79158 Third Party AdvisoryVDB Entry
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A16428 Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2012-10/msg00010.html Mailing ListThird Party Advisory
http://osvdb.org/86099 Broken Link
http://rhn.redhat.com/errata/RHSA-2012-1351.html Third Party Advisory
http://secunia.com/advisories/50856 Third Party Advisory
http://secunia.com/advisories/50892 Third Party Advisory
http://secunia.com/advisories/50904 Third Party Advisory
http://secunia.com/advisories/50935 Third Party Advisory
http://secunia.com/advisories/50936 Third Party Advisory
http://secunia.com/advisories/50984 Third Party Advisory
http://secunia.com/advisories/51181 Third Party Advisory
http://secunia.com/advisories/55318 Third Party Advisory
http://www.debian.org/security/2012/dsa-2565 Third Party Advisory
http://www.debian.org/security/2012/dsa-2569 Third Party Advisory
http://www.debian.org/security/2012/dsa-2572 Third Party Advisory
http://www.mandriva.com/security/advisories?name=MDVSA-2012:163 Third Party Advisory
http://www.mozilla.org/security/announce/2012/mfsa2012-85.html Vendor Advisory
http://www.ubuntu.com/usn/USN-1611-1 Third Party Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=785720 Issue Tracking
https://exchange.xforce.ibmcloud.com/vulnerabilities/79158 Third Party AdvisoryVDB Entry
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A16428 Third Party Advisory

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Source: NIST National Vulnerability Database (record CVE-2012-4180), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.