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Fencer Vulns
critical 9.3

CVE-2006-1739 json

The CSS border-rendering code 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 Se…

published 2006-04-14 20 y ago modified 2026-06-16 4 mo ago also EUVD-2006-1739

cvss
9.3
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
8.4%
EPSS 8.4% chance of exploitation in 30 days, percentile 95%
public exploits
0
none known

Summary

The CSS border-rendering code 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 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via certain Cascading Style Sheets (CSS) that causes an out-of-bounds array write and buffer overflow.

Patch / fix

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

debian advisories DEBIAN-CVE-2006-1739

  • 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-2006-1739 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

8.44% chance of exploitation in the next 30 days, higher than 95% 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.