CVE-2012-4387

Apache Struts 2.0.0 through 2.3.4 allows remote attackers to cause a denial of service (CPU consumption) via a long parameter name, which is processed as an OGNL expression.

Published: 2012-09-05 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2012-4387 is rated Moderate Risk (53.4/100): CVSS Medium severity, with high exploitation likelihood (EPSS 8.35%, 94th percentile). EPSS ranks this CVE among the most likely to be exploited in the near term. 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.

Exploit prediction scoring system (EPSS) score for CVE-2012-4387

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 2026-06-15 7.92% 8.35% +0.44%
2 2026-03-17 7.17% 7.92% +0.74%
3 2026-03-04 — 7.17% —

Full EPSS history (15 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2012-4387

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.0 2.0 MEDIUM
AV:N/AC:L/Au:N/C:N/I:N/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:P)
Partial availability impact.
 10.0 2.9 [email protected]

Weakness enumeration for CVE-2012-4387

GitHub Security Advisory for CVE-2012-4387

GHSA-hrgc-54mv-58gv · Severity: medium · Ecosystem: maven — Denial of service in Apache Struts

OS Trackers for CVE-2012-4387

vendor priority summary link
ubuntu medium CVE-2012-4387 medium priority: Ubuntu including 1 source packages (libstruts1.2-java), 6 status rows across 6 suites (hardy, lucid, natty, oneiric, precise, upstream): not-affected 6. https://ubuntu.com/security/CVE-2012-4387

Affected software / configurations for CVE-2012-4387

Vendor Product Version Raw CPE
apache struts 2.0.0 cpe:2.3:a:apache:struts:2.0.0:*:*:*:*:*:*:*
apache struts 2.0.1 cpe:2.3:a:apache:struts:2.0.1:*:*:*:*:*:*:*
apache struts 2.0.2 cpe:2.3:a:apache:struts:2.0.2:*:*:*:*:*:*:*
apache struts 2.0.3 cpe:2.3:a:apache:struts:2.0.3:*:*:*:*:*:*:*
apache struts 2.0.4 cpe:2.3:a:apache:struts:2.0.4:*:*:*:*:*:*:*
apache struts 2.0.5 cpe:2.3:a:apache:struts:2.0.5:*:*:*:*:*:*:*
apache struts 2.0.6 cpe:2.3:a:apache:struts:2.0.6:*:*:*:*:*:*:*
apache struts 2.0.7 cpe:2.3:a:apache:struts:2.0.7:*:*:*:*:*:*:*
apache struts 2.0.8 cpe:2.3:a:apache:struts:2.0.8:*:*:*:*:*:*:*
apache struts 2.0.9 cpe:2.3:a:apache:struts:2.0.9:*:*:*:*:*:*:*
apache struts 2.0.10 cpe:2.3:a:apache:struts:2.0.10:*:*:*:*:*:*:*
apache struts 2.0.11 cpe:2.3:a:apache:struts:2.0.11:*:*:*:*:*:*:*
apache struts 2.0.11.1 cpe:2.3:a:apache:struts:2.0.11.1:*:*:*:*:*:*:*
apache struts 2.0.11.2 cpe:2.3:a:apache:struts:2.0.11.2:*:*:*:*:*:*:*
apache struts 2.0.12 cpe:2.3:a:apache:struts:2.0.12:*:*:*:*:*:*:*
apache struts 2.0.13 cpe:2.3:a:apache:struts:2.0.13:*:*:*:*:*:*:*
apache struts 2.0.14 cpe:2.3:a:apache:struts:2.0.14:*:*:*:*:*:*:*
apache struts 2.1.0 cpe:2.3:a:apache:struts:2.1.0:*:*:*:*:*:*:*
apache struts 2.1.1 cpe:2.3:a:apache:struts:2.1.1:*:*:*:*:*:*:*
apache struts 2.1.2 cpe:2.3:a:apache:struts:2.1.2:*:*:*:*:*:*:*
apache struts 2.1.3 cpe:2.3:a:apache:struts:2.1.3:*:*:*:*:*:*:*
apache struts 2.1.4 cpe:2.3:a:apache:struts:2.1.4:*:*:*:*:*:*:*
apache struts 2.1.5 cpe:2.3:a:apache:struts:2.1.5:*:*:*:*:*:*:*
apache struts 2.1.6 cpe:2.3:a:apache:struts:2.1.6:*:*:*:*:*:*:*
apache struts 2.1.8 cpe:2.3:a:apache:struts:2.1.8:*:*:*:*:*:*:*
apache struts 2.1.8.1 cpe:2.3:a:apache:struts:2.1.8.1:*:*:*:*:*:*:*
apache struts 2.2.1 cpe:2.3:a:apache:struts:2.2.1:*:*:*:*:*:*:*
apache struts 2.2.1.1 cpe:2.3:a:apache:struts:2.2.1.1:*:*:*:*:*:*:*
apache struts 2.2.3 cpe:2.3:a:apache:struts:2.2.3:*:*:*:*:*:*:*
apache struts 2.2.3.1 cpe:2.3:a:apache:struts:2.2.3.1:*:*:*:*:*:*:*
apache struts 2.3.1 cpe:2.3:a:apache:struts:2.3.1:*:*:*:*:*:*:*
apache struts 2.3.1.1 cpe:2.3:a:apache:struts:2.3.1.1:*:*:*:*:*:*:*
apache struts 2.3.1.2 cpe:2.3:a:apache:struts:2.3.1.2:*:*:*:*:*:*:*
apache struts 2.3.3 cpe:2.3:a:apache:struts:2.3.3:*:*:*:*:*:*:*
apache struts 2.3.4 cpe:2.3:a:apache:struts:2.3.4:*:*:*:*:*:*:*

References for CVE-2012-4387

cvelogic Threat Intelligence