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Fencer Vulns
critical 9.3

CVE-2007-2867 json

Multiple vulnerabilities in the layout engine for Mozilla Firefox 1.5.x before 1.5.0.12 and 2.x before 2.0.0.4, Thunderbird 1.5.x before 1.…

published 2007-06-01 19 y ago modified 2026-06-16 4 mo ago also EUVD-2007-2859

cvss
9.3
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
3.4%
EPSS 3.4% chance of exploitation in 30 days, percentile 88%
public exploits
0
none known

Summary

Multiple vulnerabilities in the layout engine for Mozilla Firefox 1.5.x before 1.5.0.12 and 2.x before 2.0.0.4, Thunderbird 1.5.x before 1.5.0.12 and 2.x before 2.0.0.4, and SeaMonkey 1.0.9 and 1.1.2 allow remote attackers to cause a denial of service (crash) via vectors related to dangling pointers, heap corruption, signed/unsigned, and other issues.

Patch / fix

  • seamonkey RHEL 2.1 1.0.9-0.1.el2
  • seamonkey RHEL 3 1.0.9-0.1.el3
  • seamonkey RHEL 4 1.0.9-2.el4
  • devhelp RHEL 4 0.10-0.8.el4
  • seamonkey-nss RHEL 2.1 1.0.9-0.1.el2
  • seamonkey-nss RHEL 3 1.0.9-0.1.el3
  • seamonkey-chat RHEL 2.1 1.0.9-0.1.el2
  • seamonkey-chat RHEL 3 1.0.9-0.1.el3

red hat advisories RHSA-2007:0402RHSA-2007:0401RHSA-2007:0400

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-2007-2867 updated

Multiple Firefox flaws (CVE-2007-1562, CVE-2007-2867, CVE-2007-2868, CVE-2007-2869, CVE-2007-2870, CVE-2007-2871)

  • Red Hat Desktop version 3 seamonkey 1.0.9-0.1.el3, seamonkey-nss 1.0.9-0.1.el3, seamonkey-chat 1.0.9-0.1.el3, seamonkey-mail 1.0.9-0.1.el3, seamonkey-nspr 1.0.9-0.1.el3, seamonkey-js-debugger 1.0.9-0.1.el3, +1 more
    fixed: vendor fix RHSA-2007:0402
  • Red Hat Enterprise Linux (v. 5 server) yelp 2.16.0-15.el5, devhelp 0.12-11.el5, firefox 1.5.0.12-1.el5
    fixed: vendor fix RHSA-2007:0400
  • Red Hat Enterprise Linux AS (Advanced Server) version 2.1 seamonkey 1.0.9-0.1.el2, seamonkey-nss 1.0.9-0.1.el2, seamonkey-chat 1.0.9-0.1.el2, seamonkey-mail 1.0.9-0.1.el2, seamonkey-nspr 1.0.9-0.1.el2, seamonkey-js-debugger 1.0.9-0.1.el2, +1 more Red Hat Enterprise Linux AS version 3 seamonkey 1.0.9-0.1.el3, seamonkey-nss 1.0.9-0.1.el3, seamonkey-chat 1.0.9-0.1.el3, seamonkey-mail 1.0.9-0.1.el3, seamonkey-nspr 1.0.9-0.1.el3, seamonkey-js-debugger 1.0.9-0.1.el3, +1 more Red Hat Enterprise Linux AS version 4 devhelp 0.10-0.8.el4, seamonkey 1.0.9-2.el4, firefox 1.5.0.12-0.1.el4, seamonkey-chat 1.0.9-2.el4, seamonkey-mail 1.0.9-2.el4, thunderbird 1.5.0.12-0.1.el4, +2 more
    fixed: vendor fix RHSA-2007:0402
  • Red Hat Enterprise Linux Desktop (v. 5 client) yelp 2.16.0-15.el5, devhelp 0.12-11.el5, firefox 1.5.0.12-1.el5, thunderbird 1.5.0.12-1.el5
    fixed: vendor fix RHSA-2007:0400
  • Red Hat Enterprise Linux Desktop version 4 devhelp 0.10-0.8.el4, seamonkey 1.0.9-2.el4, firefox 1.5.0.12-0.1.el4, seamonkey-chat 1.0.9-2.el4, seamonkey-mail 1.0.9-2.el4, thunderbird 1.5.0.12-0.1.el4, +2 more
    fixed: vendor fix RHSA-2007:0402
  • Red Hat Enterprise Linux Desktop Workstation (v. 5 client) devhelp 0.12-11.el5
    fixed: vendor fix RHSA-2007:0400
  • Red Hat Enterprise Linux ES version 2.1 seamonkey 1.0.9-0.1.el2, seamonkey-nss 1.0.9-0.1.el2, seamonkey-chat 1.0.9-0.1.el2, seamonkey-mail 1.0.9-0.1.el2, seamonkey-nspr 1.0.9-0.1.el2, seamonkey-js-debugger 1.0.9-0.1.el2, +1 more Red Hat Enterprise Linux ES version 3 seamonkey 1.0.9-0.1.el3, seamonkey-nss 1.0.9-0.1.el3, seamonkey-chat 1.0.9-0.1.el3, seamonkey-mail 1.0.9-0.1.el3, seamonkey-nspr 1.0.9-0.1.el3, seamonkey-js-debugger 1.0.9-0.1.el3, +1 more Red Hat Enterprise Linux ES version 4 devhelp 0.10-0.8.el4, seamonkey 1.0.9-2.el4, firefox 1.5.0.12-0.1.el4, seamonkey-chat 1.0.9-2.el4, seamonkey-mail 1.0.9-2.el4, thunderbird 1.5.0.12-0.1.el4, +2 more
    fixed: vendor fix RHSA-2007:0402
  • Red Hat Enterprise Linux Optional Productivity Applications (v. 5 server) thunderbird 1.5.0.12-1.el5
    fixed: vendor fix RHSA-2007:0401
show 1 more
  • Red Hat Enterprise Linux WS version 2.1 seamonkey 1.0.9-0.1.el2, seamonkey-nss 1.0.9-0.1.el2, seamonkey-chat 1.0.9-0.1.el2, seamonkey-mail 1.0.9-0.1.el2, seamonkey-nspr 1.0.9-0.1.el2, seamonkey-js-debugger 1.0.9-0.1.el2, +1 more Red Hat Enterprise Linux WS version 3 seamonkey 1.0.9-0.1.el3, seamonkey-nss 1.0.9-0.1.el3, seamonkey-chat 1.0.9-0.1.el3, seamonkey-mail 1.0.9-0.1.el3, seamonkey-nspr 1.0.9-0.1.el3, seamonkey-js-debugger 1.0.9-0.1.el3, +1 more Red Hat Enterprise Linux WS version 4 devhelp 0.10-0.8.el4, seamonkey 1.0.9-2.el4, firefox 1.5.0.12-0.1.el4, seamonkey-chat 1.0.9-2.el4, seamonkey-mail 1.0.9-2.el4, thunderbird 1.5.0.12-0.1.el4, +2 more Red Hat Linux Advanced Workstation 2.1 seamonkey 1.0.9-0.1.el2, seamonkey-nss 1.0.9-0.1.el2, seamonkey-chat 1.0.9-0.1.el2, seamonkey-mail 1.0.9-0.1.el2, seamonkey-nspr 1.0.9-0.1.el2, seamonkey-js-debugger 1.0.9-0.1.el2, +1 more
    fixed: vendor fix RHSA-2007:0402

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

3.41% chance of exploitation in the next 30 days, higher than 88% of all scored CVEs (FIRST EPSS, 2026-11-08).

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-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

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.