Format string vulnerability in the inputAnswer function in file.c in w3m before 0.5.2…
Priority MEDIUM 48CWE-134Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Medium
- Impact type
- Code execution
- Confidentiality · integrity · availability
- Complete · Complete · Complete
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA. Impact type from CWE-134 and the CVSS impact.
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.
Why it matters now
EPSS 0.04822 92nd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2006-6772
- 2026-10-03 Alias added: GHSA-x9rf-x2gc-ppgw
References
Advisory 7
Other 5
- http://w3m.cvs.sourceforge.net/w3m/w3m/file.c?view=log
- 20061225 w3m format string bug
- http://w3m.cvs.sourceforge.net/w3m/w3m/file.c?r1=1.249&r2=1.250
- http://w3m.cvs.sourceforge.net/%2Acheckout%2A/w3m/w3m/NEWS?revision=1.79
- http://sourceforge.net/tracker/index.php?func=detail&aid=1612792&group_id=39518&atid=425439
More W3m vulnerabilities
- TI-2001-00673 Buffer overflow in w3m 0.2.1 and earlier allows a remote attacker to execute arbitrary… CVSS 2.0HIGH 7.5
- TI-2010-01988 istream.c in w3m 0.5.2 and possibly other versions, when ssl_verify_server is enabled… CVSS 2.0MEDIUM 6.8
- TI-2002-01272 w3m before 0.3.2.2 does not properly escape HTML tags in the ALT attribute of an IMG tag… CVSS 2.0MEDIUM 5.0
- TI-2002-01261 Cross-site scripting (XSS) vulnerability in w3m 0.3.2 does not escape an HTML tag in a… CVSS 2.0MEDIUM 4.3
Sources
- CVE-2006-6772 · CVE Program
- CVE-2006-6772 · NVD
- FIRST EPSS
- GHSA-x9rf-x2gc-ppgw · GitHub Advisory Database · CC BY 4.0
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