Buffer overflow in w3m 0.2.1 and earlier allows a remote attacker to execute arbitrary…
Priority MEDIUM 47Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- Partial · Partial · Partial
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA.
Summary
Buffer overflow in w3m 0.2.1 and earlier allows a remote attacker to execute arbitrary code via a long base64 encoded MIME header.
Why it matters now
EPSS 0.12628 96th 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
CPE configurations NVD · 9
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:w3m:w3m:*:*:*:*:*:*:*:* | up to 0.2.1 | Vulnerable | W3m |
| cpe:2.3:a:w3m:w3m:0.1.3:*:*:*:*:*:*:* | 0.1.3 | Vulnerable | W3m |
| cpe:2.3:a:w3m:w3m:0.1.4:*:*:*:*:*:*:* | 0.1.4 | Vulnerable | W3m |
| cpe:2.3:a:w3m:w3m:0.1.6:*:*:*:*:*:*:* | 0.1.6 | Vulnerable | W3m |
| cpe:2.3:a:w3m:w3m:0.1.7:*:*:*:*:*:*:* | 0.1.7 | Vulnerable | W3m |
| cpe:2.3:a:w3m:w3m:0.1.8:*:*:*:*:*:*:* | 0.1.8 | Vulnerable | W3m |
| cpe:2.3:a:w3m:w3m:0.1.9:*:*:*:*:*:*:* | 0.1.9 | Vulnerable | W3m |
| cpe:2.3:a:w3m:w3m:0.1.10:*:*:*:*:*:*:* | 0.1.10 | Vulnerable | W3m |
| cpe:2.3:a:w3m:w3m:0.2:*:*:*:*:*:*:* | 0.2 | Vulnerable | W3m |
- cpe:2.3:a:w3m:w3m:*:*:*:*:*:*:*:* Versions up to 0.2.1 Vulnerable ·W3m
- cpe:2.3:a:w3m:w3m:0.1.3:*:*:*:*:*:*:* Versions 0.1.3 Vulnerable ·W3m
- cpe:2.3:a:w3m:w3m:0.1.4:*:*:*:*:*:*:* Versions 0.1.4 Vulnerable ·W3m
- cpe:2.3:a:w3m:w3m:0.1.6:*:*:*:*:*:*:* Versions 0.1.6 Vulnerable ·W3m
- cpe:2.3:a:w3m:w3m:0.1.7:*:*:*:*:*:*:* Versions 0.1.7 Vulnerable ·W3m
- cpe:2.3:a:w3m:w3m:0.1.8:*:*:*:*:*:*:* Versions 0.1.8 Vulnerable ·W3m
- cpe:2.3:a:w3m:w3m:0.1.9:*:*:*:*:*:*:* Versions 0.1.9 Vulnerable ·W3m
- cpe:2.3:a:w3m:w3m:0.1.10:*:*:*:*:*:*:* Versions 0.1.10 Vulnerable ·W3m
- cpe:2.3:a:w3m:w3m:0.2:*:*:*:*:*:*:* Versions 0.2 Vulnerable ·W3m
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2001-0700
- 2026-10-03 Alias added: GHSA-w4h5-5xwp-3m26
References
More W3m vulnerabilities
- TI-2006-06516 Format string vulnerability in the inputAnswer function in file.c in w3m before 0.5.2… CVSS 2.0HIGH 9.3
- 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-2001-0700 · CVE Program
- CVE-2001-0700 · NVD
- FIRST EPSS
- GHSA-w4h5-5xwp-3m26 · GitHub Advisory Database · CC BY 4.0
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