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Fencer Intel
critical 9.3

CVE-2010-1209 json

Use-after-free vulnerability in the NodeIterator implementation in Mozilla Firefox 3.5.x before 3.5.11 and 3.6.x before 3.6.7, and SeaMonke…

published 16y ago modified 4mo ago also EUVD-2010-1239

cvss
9.3
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
5.4%
EPSS 5.4% chance of exploitation in 30 days, percentile 92%
public exploits
0
none known

Summary

Use-after-free vulnerability in the NodeIterator implementation in Mozilla Firefox 3.5.x before 3.5.11 and 3.6.x before 3.6.7, and SeaMonkey before 2.0.6, allows remote attackers to execute arbitrary code via a crafted NodeFilter that detaches DOM nodes, related to the NodeIterator interface and a javascript callback.

Patch / fix

  • firefox RHEL 4 3.6.7-2.el4
  • firefox RHEL 5 3.6.7-2.el5
  • xulrunner RHEL 5 1.9.2.7-2.el5

red hat advisories RHSA-2010:0547

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

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

Is CVE-2010-1209 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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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-2010-1209 updated cvss 6.8

Mozilla Use-after-free error in NodeIterator

  • Red Hat Enterprise Linux (v. 5 server) firefox 3.6.7-2.el5, xulrunner 1.9.2.7-2.el5 Red Hat Enterprise Linux AS version 4 firefox 3.6.7-2.el4 Red Hat Enterprise Linux Desktop (v. 5 client) firefox 3.6.7-2.el5, xulrunner 1.9.2.7-2.el5 Red Hat Enterprise Linux Desktop version 4 firefox 3.6.7-2.el4 Red Hat Enterprise Linux Desktop Workstation (v. 5 client) xulrunner 1.9.2.7-2.el5 Red Hat Enterprise Linux ES version 4 firefox 3.6.7-2.el4
    +1 more products
    Red Hat Enterprise Linux WS version 4 firefox 3.6.7-2.el4
    fixed: vendor fix RHSA-2010:0547
  • 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

5.38% chance of exploitation in the next 30 days, higher than 92% 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.