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Fencer Vulns
high 7.5

CVE-2006-3801 json

Mozilla Firefox 1.5 before 1.5.0.5 and SeaMonkey before 1.0.3 does not properly clear a JavaScript reference to a frame or window, which le…

published 2006-07-27 20 y ago modified 2026-06-16 4 mo ago also EUVD-2006-3795

cvss
7.5
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
4.4%
EPSS 4.4% chance of exploitation in 30 days, percentile 91%
public exploits
0
none known

Summary

Mozilla Firefox 1.5 before 1.5.0.5 and SeaMonkey before 1.0.3 does not properly clear a JavaScript reference to a frame or window, which leaves a pointer to a deleted object that allows remote attackers to execute arbitrary native code.

Patch / fix

  • thunderbird Debian 14, Debian 13, Debian 12 1.5.0.5-1

debian advisories DEBIAN-CVE-2006-3801

  • thunderbird RHEL 4 1.5.0.5-0.el4.1
  • firefox RHEL 4 1.5.0.5-0.el4.1
  • seamonkey RHEL 4 1.0.3-0.el4.1
  • devhelp RHEL 4 0.10-0.2.el4
  • seamonkey-chat RHEL 4 1.0.3-0.el4.1
  • seamonkey-mail RHEL 4 1.0.3-0.el4.1
  • seamonkey-js-debugger RHEL 4 1.0.3-0.el4.1
  • seamonkey-dom-inspector RHEL 4 1.0.3-0.el4.1

red hat advisories RHSA-2006:0611RHSA-2006:0610RHSA-2006:0609RHSA-2006:0608

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-2006-3801 updated

security flaw

  • Red Hat Desktop version 3 seamonkey 1.0.3-0.el3.1, seamonkey-nss 1.0.3-0.el3.1, seamonkey-chat 1.0.3-0.el3.1, seamonkey-mail 1.0.3-0.el3.1, seamonkey-nspr 1.0.3-0.el3.1, seamonkey-js-debugger 1.0.3-0.el3.1, +1 more Red Hat Enterprise Linux AS version 3 seamonkey 1.0.3-0.el3.1, seamonkey-nss 1.0.3-0.el3.1, seamonkey-chat 1.0.3-0.el3.1, seamonkey-mail 1.0.3-0.el3.1, seamonkey-nspr 1.0.3-0.el3.1, seamonkey-js-debugger 1.0.3-0.el3.1, +1 more
    fixed: vendor fix RHSA-2006:0608
  • Red Hat Enterprise Linux AS version 4 devhelp 0.10-0.2.el4, firefox 1.5.0.5-0.el4.1, seamonkey 1.0.3-0.el4.1, thunderbird 1.5.0.5-0.el4.1, seamonkey-chat 1.0.3-0.el4.1, seamonkey-mail 1.0.3-0.el4.1, +2 more Red Hat Enterprise Linux Desktop version 4 devhelp 0.10-0.2.el4, firefox 1.5.0.5-0.el4.1, seamonkey 1.0.3-0.el4.1, thunderbird 1.5.0.5-0.el4.1, seamonkey-chat 1.0.3-0.el4.1, seamonkey-mail 1.0.3-0.el4.1, +2 more
    fixed: vendor fix RHSA-2006:0609
  • Red Hat Enterprise Linux ES version 2.1
    fixed: vendor fix RHSA-2006:0594
  • Red Hat Enterprise Linux ES version 3 seamonkey 1.0.3-0.el3.1, seamonkey-nss 1.0.3-0.el3.1, seamonkey-chat 1.0.3-0.el3.1, seamonkey-mail 1.0.3-0.el3.1, seamonkey-nspr 1.0.3-0.el3.1, seamonkey-js-debugger 1.0.3-0.el3.1, +1 more
    fixed: vendor fix RHSA-2006:0608
  • Red Hat Enterprise Linux ES version 4 devhelp 0.10-0.2.el4, firefox 1.5.0.5-0.el4.1, seamonkey 1.0.3-0.el4.1, thunderbird 1.5.0.5-0.el4.1, seamonkey-chat 1.0.3-0.el4.1, seamonkey-mail 1.0.3-0.el4.1, +2 more
    fixed: vendor fix RHSA-2006:0609
  • Red Hat Enterprise Linux WS version 2.1
    fixed: vendor fix RHSA-2006:0594
  • Red Hat Enterprise Linux WS version 3 seamonkey 1.0.3-0.el3.1, seamonkey-nss 1.0.3-0.el3.1, seamonkey-chat 1.0.3-0.el3.1, seamonkey-mail 1.0.3-0.el3.1, seamonkey-nspr 1.0.3-0.el3.1, seamonkey-js-debugger 1.0.3-0.el3.1, +1 more
    fixed: vendor fix RHSA-2006:0608
  • Red Hat Enterprise Linux WS version 4 devhelp 0.10-0.2.el4, firefox 1.5.0.5-0.el4.1, seamonkey 1.0.3-0.el4.1, thunderbird 1.5.0.5-0.el4.1, seamonkey-chat 1.0.3-0.el4.1, seamonkey-mail 1.0.3-0.el4.1, +2 more
    fixed: vendor fix RHSA-2006:0609
show 1 more
  • Red Hat Linux Advanced Workstation 2.1
    fixed: vendor fix RHSA-2006:0594

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

4.43% chance of exploitation in the next 30 days, higher than 91% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 2.0 7.5 AV:N/AC:L/Au:N/C:P/I:P/A:P

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.