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Fencer Vulns
medium 5.0

CVE-2009-2664 json

The js_watch_set function in js/src/jsdbgapi.cpp in the JavaScript engine in Mozilla Firefox before 3.0.12 allows remote attackers to cause…

published 2009-08-04 17 y ago modified 2026-06-16 4 mo ago also EUVD-2009-2657

cvss
5.0
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
2.8%
EPSS 2.8% chance of exploitation in 30 days, percentile 86%
public exploits
0
none known

Summary

The js_watch_set function in js/src/jsdbgapi.cpp in the JavaScript engine in Mozilla Firefox before 3.0.12 allows remote attackers to cause a denial of service (assertion failure and application exit) or possibly execute arbitrary code via a crafted .js file, related to a "memory safety bug." NOTE: this was originally reported as affecting versions before 3.0.13.

Patch / fix

  • firefox RHEL 4 3.0.12-1.el4
  • firefox RHEL 5 3.0.12-1.el5_3
  • xulrunner RHEL 5 1.9.0.12-1.el5_3
  • xulrunner-devel-unstable RHEL 5 1.9.0.12-1.el5_3

red hat advisories RHSA-2009:1162

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-2009-2664 updated cvss 6.8

security flaw

  • Red Hat Enterprise Linux (v. 5 server) firefox 3.0.12-1.el5_3, xulrunner 1.9.0.12-1.el5_3, xulrunner-devel-unstable 1.9.0.12-1.el5_3 Red Hat Enterprise Linux AS version 4 firefox 3.0.12-1.el4 Red Hat Enterprise Linux Desktop (v. 5 client) firefox 3.0.12-1.el5_3, xulrunner 1.9.0.12-1.el5_3, xulrunner-devel-unstable 1.9.0.12-1.el5_3 Red Hat Enterprise Linux Desktop version 4 firefox 3.0.12-1.el4 Red Hat Enterprise Linux Desktop Workstation (v. 5 client) xulrunner 1.9.0.12-1.el5_3, xulrunner-devel-unstable 1.9.0.12-1.el5_3 Red Hat Enterprise Linux ES version 4 firefox 3.0.12-1.el4
    +1 more products
    Red Hat Enterprise Linux WS version 4 firefox 3.0.12-1.el4
    fixed: vendor fix RHSA-2009:1162

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

2.80% chance of exploitation in the next 30 days, higher than 86% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:N/I:N/A:P

Classification

Weakness
  • CWE-399 Resource Management Errors

References

Sources

Fencer Vulns 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.