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Fencer Vulns
critical 9.3

CVE-2006-6772 json

Format string vulnerability in the inputAnswer function in file.c in w3m before 0.5.2, when run with the dump or backend option, allows rem…

published 2006-12-27 19 y ago modified 2026-06-16 4 mo ago also EUVD-2006-6755

cvss
9.3
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
4.8%
EPSS 4.8% chance of exploitation in 30 days, percentile 92%
public exploits
0
none known

Summary

Format string vulnerability in the inputAnswer function in file.c in w3m before 0.5.2, when run with the dump or backend option, allows remote attackers to execute arbitrary code via format string specifiers in the Common Name (CN) field of an SSL certificate associated with an https URL.

Patch / fix

  • w3m Debian 14, Debian 13, Debian 12 0.5.1-5.1

debian advisories DEBIAN-CVE-2006-6772

  • w3m openSUSE Tumbleweed 0.5.3+git20180125-1.14

opensuse advisories openSUSE-SU-2024:11504-1

Exploit prediction

4.82% chance of exploitation in the next 30 days, higher than 92% 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-134 Use of Externally-Controlled Format String

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.