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Fencer Intel
critical 10.0

CVE-2011-0073 in the critical feed json

Mozilla Firefox before 3.5.19 and 3.6.x before 3.6.17, and SeaMonkey before 2.0.14, does not properly use nsTreeRange data structures, whic…

published 2011-05-07 15 y ago modified 2026-06-16 4 mo ago also EUVD-2011-0099

cvss
10.0
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
70.9%
EPSS 70.9% chance of exploitation in 30 days, percentile 99.4%
public exploits
3
Metasploit, Exploit-DB

Summary

Mozilla Firefox before 3.5.19 and 3.6.x before 3.6.17, and SeaMonkey before 2.0.14, does not properly use nsTreeRange data structures, which allows remote attackers to execute arbitrary code via unspecified vectors that lead to a "dangling pointer."

Patch / fix

  • thunderbird RHEL 6 3.1.10-1.el6_0
  • thunderbird RHEL 4 1.5.0.12-38.el4
  • thunderbird RHEL 5 PRODUCTIVITY, RHEL 5 2.0.0.24-17.el5_6
  • seamonkey RHEL 4 1.0.9-70.el4_8
  • seamonkey-chat RHEL 4 1.0.9-70.el4_8
  • seamonkey-mail RHEL 4 1.0.9-70.el4_8
  • seamonkey-js-debugger RHEL 4 1.0.9-70.el4_8
  • seamonkey-dom-inspector RHEL 4 1.0.9-70.el4_8

red hat advisories RHSA-2011:0475RHSA-2011:0474RHSA-2011:0473RHSA-2011:0471

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-2011-0073 updated cvss 6.8

Mozilla dangling pointer flaw (MFSA 2011-13)

  • Red Hat Enterprise Linux (v. 5.6.z server) firefox 3.6.17-1.el5_6, xulrunner 1.9.2.17-3.el5_6 Red Hat Enterprise Linux AS version 4 firefox 3.6.17-2.el4, seamonkey 1.0.9-70.el4_8, thunderbird 1.5.0.12-38.el4, seamonkey-chat 1.0.9-70.el4_8, seamonkey-mail 1.0.9-70.el4_8, seamonkey-js-debugger 1.0.9-70.el4_8, +1 more
    fixed: vendor fix RHSA-2011:0471
  • Red Hat Enterprise Linux Desktop (v. 5 client) thunderbird 2.0.0.24-17.el5_6
    fixed: vendor fix RHSA-2011:0474
  • Red Hat Enterprise Linux Desktop (v. 6) firefox 3.6.17-1.el6_0, thunderbird 3.1.10-1.el6_0, xulrunner 1.9.2.17-4.el6_0 Red Hat Enterprise Linux Desktop Optional (v. 6) xulrunner 1.9.2.17-4.el6_0 Red Hat Enterprise Linux Desktop version 4 firefox 3.6.17-2.el4, seamonkey 1.0.9-70.el4_8, thunderbird 1.5.0.12-38.el4, seamonkey-chat 1.0.9-70.el4_8, seamonkey-mail 1.0.9-70.el4_8, seamonkey-js-debugger 1.0.9-70.el4_8, +1 more Red Hat Enterprise Linux ES version 4 firefox 3.6.17-2.el4, seamonkey 1.0.9-70.el4_8, thunderbird 1.5.0.12-38.el4, seamonkey-chat 1.0.9-70.el4_8, seamonkey-mail 1.0.9-70.el4_8, seamonkey-js-debugger 1.0.9-70.el4_8, +1 more Red Hat Enterprise Linux HPC Node Optional (v. 6) firefox 3.6.17-1.el6_0, xulrunner 1.9.2.17-4.el6_0
    fixed: vendor fix RHSA-2011:0471
  • Red Hat Enterprise Linux Optional Productivity Applications (v. 5 server) thunderbird 2.0.0.24-17.el5_6
    fixed: vendor fix RHSA-2011:0474
  • Red Hat Enterprise Linux Server (v. 6) firefox 3.6.17-1.el6_0, xulrunner 1.9.2.17-4.el6_0 Red Hat Enterprise Linux Server Optional (v. 6) thunderbird 3.1.10-1.el6_0, xulrunner 1.9.2.17-4.el6_0 Red Hat Enterprise Linux Workstation (v. 6) firefox 3.6.17-1.el6_0, thunderbird 3.1.10-1.el6_0, xulrunner 1.9.2.17-4.el6_0 Red Hat Enterprise Linux Workstation Optional (v. 6) xulrunner 1.9.2.17-4.el6_0 Red Hat Enterprise Linux WS version 4 firefox 3.6.17-2.el4, seamonkey 1.0.9-70.el4_8, thunderbird 1.5.0.12-38.el4, seamonkey-chat 1.0.9-70.el4_8, seamonkey-mail 1.0.9-70.el4_8, seamonkey-js-debugger 1.0.9-70.el4_8, +1 more
    fixed: vendor fix RHSA-2011:0471

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

Timeline

  1. First public exploit (Metasploit exploit/windows/browser/mozilla_nstreerange)
  2. Published

Exploit prediction

70.89% chance of exploitation in the next 30 days, higher than 99.4% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

CVSS scores

assigned by version score vector
NVD 2.0 10.0 AV:N/AC:L/Au:N/C:C/I:C/A:C

Classification

Weakness
  • CWE-20 Improper Input Validation

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.