The mod_cgid module in the Apache HTTP Server before 2.4.10 does not have a timeout mechanism, which allows remote attackers to cause a denial of service (process hang) via a request to a CGI script that does not read from its stdin file descriptor.
Conclusion & alert: CVE-2014-0231 is rated Moderate Risk (59.1/100): CVSS Medium severity, with high exploitation likelihood (EPSS 44.15%, 97th percentile). Core evidence: EPSS ranks this CVE among the most likely to be exploited in the near term. EPSS rose +11.56% over the last day, indicating growing attacker interest. Mandatory action: High exploitation likelihood—assess exposure and prioritize 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 | 2026-03-04 | 32.59% | 44.15% | +11.56% |
| 2 | 2026-03-01 | 44.15% | 32.59% | -11.56% |
| 3 | 2026-02-04 | — | 44.15% | — |
Full EPSS history (46 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 5.0 | 2.0 | MEDIUM |
|
10.0 | 2.9 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
not yet assigned | CVE-2014-0231 not yet assigned priority: Debian including 1 source packages (apache2), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2014-0231 |
gentoo
|
normal | CVE-2014-0231: 1 GLSA(s) (201504-03), 1 atom(s) (www-servers/apache); latest impact normal. | https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2014-0231 |
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2014-0231 |
suse
|
medium | CVE-2014-0231 severity moderate: SUSE including 114 source package names (apache2, apache2-2.2.12-1.46.1, …), 237 product×package rows across 43 product lines (HPE Helion OpenStack 8, SUSE Liberty Linux 7, … (43 product lines)): Fixed 150, Known Not Affected 87. | https://www.suse.com/security/cve/CVE-2014-0231/ |
ubuntu
|
medium | CVE-2014-0231 medium priority: Ubuntu including 1 source packages (apache2), 4 status rows across 4 suites (lucid, precise, trusty, upstream): released 4. | https://ubuntu.com/security/CVE-2014-0231 |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| apache | http_server | >= 2.2.0, < 2.2.29 | cpe:2.3:a:apache:http_server:*:*:*:*:*:*:*:* |
| apache | http_server | >= 2.4.0, < 2.4.10 | cpe:2.3:a:apache:http_server:*:*:*:*:*:*:*:* |