Reference page — cumulative record through Sunday, October 4, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2010-3765

CVE-2010-3765CRITICAL

n/a n/a — Mozilla Multiple Products

  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS   %ile   KEV
   N   L   N   N  U  H  H  H    9.8   .8316   99.7   YES

AFFECTED
  Product  Versions  Fixed
  n/a      n/a –     —

TIMELINE
  Oct 5   Reserved by mitre
  Oct 27  Published (CNA: mitre)
  Oct 6   Added to CISA KEV, remediation due 2025-10-27

CWE-119 · CNA: mitre · CVSS v3.1 · 52 references · KEV due October 27, 2025

Description

Mozilla Firefox 3.5.x through 3.5.14 and 3.6.x through 3.6.11, Thunderbird 3.1.6 before 3.1.6 and 3.0.x before 3.0.10, and SeaMonkey 2.x before 2.0.10, when JavaScript is enabled, allows remote attackers to execute arbitrary code via vectors related to nsCSSFrameConstructor::ContentAppended, the appendChild method, incorrect index tracking, and the creation of multiple frames, which triggers memory corruption, as exploited in the wild in October 2010 by the Belmoo malware.

Lifecycle

Complete event history — 3 events, chronological
Date	Event	Detail
October 5, 2010	Reserved	Reserved by mitre
October 27, 2010	Published	Published (CNA: mitre)
October 6, 2025	KEV ADDED	Added to CISA KEV, remediation due 2025-10-27

Affected

Affected products and packages — 1 row
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
n/a	n/a	—	n/a	—

Weaknesses

CWE-119

References (52)

http://blog.mozilla.com/security/2010/10/26/critical-vulnerability-in-firefox-3-5-and-firefox-3-6/ [x_refsource_CONFIRM]
http://blogs.sun.com/security/entry/multiple_vulnerabilities_in_mozilla_firefox [x_refsource_CONFIRM]
http://isc.sans.edu/diary.html?storyid=9817 [x_refsource_MISC]
http://lists.fedoraproject.org/pipermail/package-announce/2010-November/050233.html [vendor-advisory, x_refsource_FEDORA]
http://lists.fedoraproject.org/pipermail/package-announce/2010-October/050061.html [vendor-advisory, x_refsource_FEDORA]
http://lists.fedoraproject.org/pipermail/package-announce/2010-October/050077.html [vendor-advisory, x_refsource_FEDORA]
http://lists.fedoraproject.org/pipermail/package-announce/2010-October/050154.html [vendor-advisory, x_refsource_FEDORA]
http://norman.com/about_norman/press_center/news_archive/2010/129223/en?utm_source=twitterfeed&utm_medium=twitter [x_refsource_MISC]
http://secunia.com/advisories/41761 [third-party-advisory, x_refsource_SECUNIA]
http://secunia.com/advisories/41965 [third-party-advisory, x_refsource_SECUNIA]
http://secunia.com/advisories/41966 [third-party-advisory, x_refsource_SECUNIA]
http://secunia.com/advisories/41969 [third-party-advisory, x_refsource_SECUNIA]
http://secunia.com/advisories/41975 [third-party-advisory, x_refsource_SECUNIA]
http://secunia.com/advisories/42003 [third-party-advisory, x_refsource_SECUNIA]
http://secunia.com/advisories/42008 [third-party-advisory, x_refsource_SECUNIA]
http://secunia.com/advisories/42043 [third-party-advisory, x_refsource_SECUNIA]
http://secunia.com/advisories/42867 [third-party-advisory, x_refsource_SECUNIA]
http://slackware.com/security/viewer.php?l=slackware-security&y=2010&m=slackware-security.556706 [vendor-advisory, x_refsource_SLACKWARE]
http://support.avaya.com/css/P8/documents/100114329 [x_refsource_CONFIRM]
http://support.avaya.com/css/P8/documents/100114335 [x_refsource_CONFIRM]
http://www.debian.org/security/2010/dsa-2124 [vendor-advisory, x_refsource_DEBIAN]
http://www.exploit-db.com/exploits/15341 [exploit, x_refsource_EXPLOIT-DB]
http://www.exploit-db.com/exploits/15342 [exploit, x_refsource_EXPLOIT-DB]
http://www.exploit-db.com/exploits/15352 [exploit, x_refsource_EXPLOIT-DB]
http://www.mandriva.com/security/advisories?name=MDVSA-2010:213 [vendor-advisory, x_refsource_MANDRIVA]
http://www.mandriva.com/security/advisories?name=MDVSA-2010:219 [vendor-advisory, x_refsource_MANDRIVA]
http://www.mozilla.org/security/announce/2010/mfsa2010-73.html [x_refsource_CONFIRM]
http://www.norman.com/about_norman/press_center/news_archive/2010/129223/ [x_refsource_MISC]
http://www.norman.com/security_center/virus_description_archive/129146/ [x_refsource_MISC]
http://www.redhat.com/support/errata/RHSA-2010-0808.html [vendor-advisory, x_refsource_REDHAT]
http://www.redhat.com/support/errata/RHSA-2010-0809.html [vendor-advisory, x_refsource_REDHAT]
http://www.redhat.com/support/errata/RHSA-2010-0810.html [vendor-advisory, x_refsource_REDHAT]
http://www.redhat.com/support/errata/RHSA-2010-0861.html [vendor-advisory, x_refsource_REDHAT]
http://www.redhat.com/support/errata/RHSA-2010-0896.html [vendor-advisory, x_refsource_REDHAT]
http://www.securityfocus.com/bid/44425 [vdb-entry, x_refsource_BID]
http://www.securitytracker.com/id?1024645 [vdb-entry, x_refsource_SECTRACK]
http://www.securitytracker.com/id?1024650 [vdb-entry, x_refsource_SECTRACK]
http://www.securitytracker.com/id?1024651 [vdb-entry, x_refsource_SECTRACK]
http://www.ubuntu.com/usn/USN-1011-2 [vendor-advisory, x_refsource_UBUNTU]
http://www.ubuntu.com/usn/USN-1011-3 [vendor-advisory, x_refsource_UBUNTU]
http://www.ubuntu.com/usn/usn-1011-1 [vendor-advisory, x_refsource_UBUNTU]
http://www.vupen.com/english/advisories/2010/2837 [vdb-entry, x_refsource_VUPEN]
http://www.vupen.com/english/advisories/2010/2857 [vdb-entry, x_refsource_VUPEN]
http://www.vupen.com/english/advisories/2010/2864 [vdb-entry, x_refsource_VUPEN]
http://www.vupen.com/english/advisories/2010/2871 [vdb-entry, x_refsource_VUPEN]
http://www.vupen.com/english/advisories/2011/0061 [vdb-entry, x_refsource_VUPEN]
https://bugzilla.mozilla.org/show_bug.cgi?id=607222 [x_refsource_CONFIRM]
https://bugzilla.mozilla.org/show_bug.cgi?id=607222#c53 [x_refsource_MISC]
https://bugzilla.redhat.com/show_bug.cgi?id=646997 [x_refsource_CONFIRM]
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12108 [vdb-entry, signature, x_refsource_OVAL]
https://rhn.redhat.com/errata/RHSA-2010-0812.html [vendor-advisory, x_refsource_REDHAT]
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2010-3765 [government-resource]

Authoritative record: CVE-2010-3765 at cve.org

Weaknesses: CWE-119

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2010-3765 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Sunday, October 4, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.