istream.c in w3m 0.5.2 and possibly other versions, when ssl_verify_server is enabled…
Priority LOW 33CWE-20Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Medium
- Impact type
- —
- Confidentiality · integrity · availability
- Partial · Partial · Partial
- Fix status
- Fixed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat.
Summary
istream.c in w3m 0.5.2 and possibly other versions, when ssl_verify_server is enabled, does not properly handle a '\0' character in a domain name in the (1) subject's Common Name or (2) Subject Alternative Name field of an X.509 certificate, which allows man-in-the-middle attackers to spoof arbitrary SSL servers via a crafted certificate issued by a legitimate Certification Authority, a related issue to CVE-2009-2408.
Why it matters now
EPSS 0.01491 74th percentileScored 2026-11-07
Fix Fixed Red Hat: 1 advisory
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
Red Hat 1 advisory
- RHSA-2010:0565 Released 2010-07-27 · Red Hat rating Moderatew3m security update
- Red Hat Enterprise Linux (v. 5 server) w3m-0.5.1-17.el5_5, w3m-0.5.1-17.el5_5.i386, w3m-0.5.1-17.el5_5.ia64 +5
- Red Hat Enterprise Linux Desktop (v. 5 client) w3m-0.5.1-17.el5_5, w3m-0.5.1-17.el5_5.i386, w3m-img-0.5.1-17.el5_5 +1
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux (v. 5 server) | Fixed | RHSA-2010:0565 |
| Red Hat Enterprise Linux Desktop (v. 5 client) | Fixed | RHSA-2010:0565 |
Not affected: 1 product
- Red Hat Enterprise Linux 6
Timeline
- 2026-10-02 Threatist record created from CVE-2010-2074
- 2026-10-03 Alias added: GHSA-xwjm-4v2q-p47f
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-2001-00673 Buffer overflow in w3m 0.2.1 and earlier allows a remote attacker to execute arbitrary… CVSS 2.0HIGH 7.5
- 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-2010-2074 · CVE Program
- CVE-2010-2074 · NVD
- FIRST EPSS
- GHSA-xwjm-4v2q-p47f · GitHub Advisory Database · CC BY 4.0
- CVE-2010-2074 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences