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Fencer Intel
critical 9.3

CVE-2010-2767 json

The navigator.plugins implementation in Mozilla Firefox before 3.5.12 and 3.6.x before 3.6.9, Thunderbird before 3.0.7 and 3.1.x before 3.1…

published 2010-09-09 16 y ago modified 2026-06-16 4 mo ago also EUVD-2010-2771

cvss
9.3
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
4.7%
EPSS 4.7% chance of exploitation in 30 days, percentile 91%
public exploits
0
none known

Summary

The navigator.plugins implementation in Mozilla Firefox before 3.5.12 and 3.6.x before 3.6.9, Thunderbird before 3.0.7 and 3.1.x before 3.1.3, and SeaMonkey before 2.0.7 does not properly handle destruction of the DOM plugin array, which might allow remote attackers to cause a denial of service (application crash) or execute arbitrary code via crafted access to the navigator object, related to a "dangling pointer vulnerability."

Patch / fix

  • thunderbird RHEL 4 1.5.0.12-30.el4
  • thunderbird RHEL 5 PRODUCTIVITY, RHEL 5 2.0.0.24-8.el5
  • firefox RHEL 4 3.6.9-1.el4
  • firefox RHEL 5 3.6.9-2.el5
  • nss RHEL 4 3.12.7-1.el4
  • nss RHEL 5 3.12.7-2.el5
  • nspr RHEL 4 4.8.6-1.el4
  • nspr RHEL 5 4.8.6-1.el5

red hat advisories RHSA-2010:0682RHSA-2010:0681RHSA-2010:0680

  • firefox-esr openSUSE Tumbleweed 128.5.1-1.1
  • MozillaFirefox openSUSE Tumbleweed 50.1.0-1.1
  • MozillaThunderbird openSUSE Tumbleweed 45.5.1-1.1

opensuse advisories openSUSE-SU-2024:14572-1openSUSE-SU-2024:10071-1openSUSE-SU-2024:10230-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2010-2767 updated cvss 6.8

Mozilla Dangling pointer vulnerability using DOM plugin array (MFSA 2010-51)

  • Red Hat Desktop version 3 seamonkey 1.0.9-0.60.el3, seamonkey-nss 1.0.9-0.60.el3, seamonkey-chat 1.0.9-0.60.el3, seamonkey-mail 1.0.9-0.60.el3, seamonkey-nspr 1.0.9-0.60.el3, seamonkey-js-debugger 1.0.9-0.60.el3, +1 more
    fixed: vendor fix RHSA-2010:0680
  • Red Hat Enterprise Linux (v. 5 server) nspr 4.8.6-1.el5, nss 3.12.7-2.el5, firefox 3.6.9-2.el5, nss-tools 3.12.7-2.el5, xulrunner 1.9.2.9-1.el5
    fixed: vendor fix RHSA-2010:0681
  • Red Hat Enterprise Linux AS version 3 seamonkey 1.0.9-0.60.el3, seamonkey-nss 1.0.9-0.60.el3, seamonkey-chat 1.0.9-0.60.el3, seamonkey-mail 1.0.9-0.60.el3, seamonkey-nspr 1.0.9-0.60.el3, seamonkey-js-debugger 1.0.9-0.60.el3, +1 more Red Hat Enterprise Linux AS version 4 nspr 4.8.6-1.el4, nss 3.12.7-1.el4, firefox 3.6.9-1.el4, nss-tools 3.12.7-1.el4, seamonkey 1.0.9-63.el4, seamonkey-chat 1.0.9-63.el4, +4 more
    fixed: vendor fix RHSA-2010:0680
  • Red Hat Enterprise Linux Desktop (v. 5 client) nspr 4.8.6-1.el5, nss 3.12.7-2.el5, firefox 3.6.9-2.el5, nss-tools 3.12.7-2.el5, xulrunner 1.9.2.9-1.el5, thunderbird 2.0.0.24-8.el5
    fixed: vendor fix RHSA-2010:0681
  • Red Hat Enterprise Linux Desktop version 4 nspr 4.8.6-1.el4, nss 3.12.7-1.el4, firefox 3.6.9-1.el4, nss-tools 3.12.7-1.el4, seamonkey 1.0.9-63.el4, seamonkey-chat 1.0.9-63.el4, +4 more
    fixed: vendor fix RHSA-2010:0680
  • Red Hat Enterprise Linux Desktop Workstation (v. 5 client) nspr 4.8.6-1.el5, nss 3.12.7-2.el5, xulrunner 1.9.2.9-1.el5
    fixed: vendor fix RHSA-2010:0681
  • Red Hat Enterprise Linux ES version 3 seamonkey 1.0.9-0.60.el3, seamonkey-nss 1.0.9-0.60.el3, seamonkey-chat 1.0.9-0.60.el3, seamonkey-mail 1.0.9-0.60.el3, seamonkey-nspr 1.0.9-0.60.el3, seamonkey-js-debugger 1.0.9-0.60.el3, +1 more Red Hat Enterprise Linux ES version 4 nspr 4.8.6-1.el4, nss 3.12.7-1.el4, firefox 3.6.9-1.el4, nss-tools 3.12.7-1.el4, seamonkey 1.0.9-63.el4, seamonkey-chat 1.0.9-63.el4, +4 more
    fixed: vendor fix RHSA-2010:0680
  • Red Hat Enterprise Linux Optional Productivity Applications (v. 5 server) thunderbird 2.0.0.24-8.el5
    fixed: vendor fix RHSA-2010:0682
show 2 more
  • Red Hat Enterprise Linux WS version 3 seamonkey 1.0.9-0.60.el3, seamonkey-nss 1.0.9-0.60.el3, seamonkey-chat 1.0.9-0.60.el3, seamonkey-mail 1.0.9-0.60.el3, seamonkey-nspr 1.0.9-0.60.el3, seamonkey-js-debugger 1.0.9-0.60.el3, +1 more Red Hat Enterprise Linux WS version 4 nspr 4.8.6-1.el4, nss 3.12.7-1.el4, firefox 3.6.9-1.el4, nss-tools 3.12.7-1.el4, seamonkey 1.0.9-63.el4, seamonkey-chat 1.0.9-63.el4, +4 more
    fixed: vendor fix RHSA-2010:0680
  • Red Hat Enterprise Linux 6 firefox
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

4.68% chance of exploitation in the next 30 days, higher than 91% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 2.0 9.3 AV:N/AC:M/Au:N/C:C/I:C/A:C

Classification

Weakness
  • CWE-399 Resource Management Errors

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.