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Fencer Vulns
medium 5.0

CVE-2006-1742 json

The JavaScript engine in Mozilla Firefox and Thunderbird 1.x before 1.5 and 1.0.x before 1.0.8, Mozilla Suite before 1.7.13, and SeaMonkey…

published 2006-04-14 20 y ago modified 2026-06-16 4 mo ago also EUVD-2006-1742

cvss
5.0
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
4.0%
EPSS 4.0% chance of exploitation in 30 days, percentile 90%
public exploits
0
none known

Summary

The JavaScript engine in Mozilla Firefox and Thunderbird 1.x before 1.5 and 1.0.x before 1.0.8, Mozilla Suite before 1.7.13, and SeaMonkey before 1.0 does not properly handle temporary variables that are not garbage collected, which might allow remote attackers to trigger operations on freed memory and cause memory corruption.

Patch / fix

  • thunderbird Debian 14, Debian 13, Debian 12 1.5.0.2-1

debian advisories DEBIAN-CVE-2006-1742

  • thunderbird RHEL 4 1.0.8-1.4.1
  • devhelp RHEL 4 0.9.2-2.4.8
  • firefox RHEL 4 1.0.8-1.4.1

red hat advisories RHSA-2006:0330RHSA-2006:0329RHSA-2006:0328

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-2006-1742 updated

security flaw

  • Red Hat Enterprise Linux AS version 4 devhelp 0.9.2-2.4.8, firefox 1.0.8-1.4.1, thunderbird 1.0.8-1.4.1 Red Hat Enterprise Linux Desktop version 4 devhelp 0.9.2-2.4.8, firefox 1.0.8-1.4.1, thunderbird 1.0.8-1.4.1 Red Hat Enterprise Linux ES version 4 devhelp 0.9.2-2.4.8, firefox 1.0.8-1.4.1, thunderbird 1.0.8-1.4.1 Red Hat Enterprise Linux WS version 4 devhelp 0.9.2-2.4.8, firefox 1.0.8-1.4.1, thunderbird 1.0.8-1.4.1
    fixed: vendor fix RHSA-2006:0329

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

3.97% chance of exploitation in the next 30 days, higher than 90% 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:P/A:N

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.