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.
Conclusion & alert: CVE-2010-2074 is rated Moderate Risk (53.2/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 1.84%). Mandatory action: Review affected assets and schedule remediation.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2025-03-30 | 4.28% | 1.84% | -2.44% |
| 2 | 2025-03-29 | 1.84% | 4.28% | +2.44% |
| 3 | 2025-03-19 | — | 1.84% | — |
Full EPSS history (9 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 6.8 | 2.0 | MEDIUM |
|
8.6 | 6.4 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
low | CVE-2010-2074 low priority: Debian including 1 source packages (w3m), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2010-2074 |
gentoo
|
normal | CVE-2010-2074: 1 GLSA(s) (201210-01), 1 atom(s) (www-client/w3m); latest impact normal. | https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2010-2074 |
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2010-2074 |
suse
|
medium | CVE-2010-2074 severity moderate: SUSE including 13 source package names (w3m-0.5.2-128.18.1, w3m-0.5.2-132.2.1, …), 34 product×package rows across 32 product lines (SUSE Linux Enterprise Desktop 12, SUSE Linux Enterprise Desktop 12 SP1, … (32 product lines)): Fixed 34. | https://www.suse.com/security/cve/CVE-2010-2074/ |
ubuntu
|
medium | CVE-2010-2074 medium priority: Ubuntu including 1 source packages (w3m), 6 status rows across 6 suites (dapper, hardy, jaunty, karmic, lucid, upstream): released 5, needed 1. | https://ubuntu.com/security/CVE-2010-2074 |