RCE in Apache Struts
CVE-2012-0391
The ExceptionDelegator component in Apache Struts before 2.2.3.1 interprets parameter values as OGNL expressions during certain exception handling for mismatched data types of properties, which allows remote attackers to execute arbitrary…
Vulnerability class: RCE (Remote Code Execution)
EPSS: 0.751 (99.5th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Apache Struts
- N/a — versions n/a
Weakness classification (CWE)
CISA KEV (Known Exploited Vulnerabilities)
This CVE is on the CISA KEV catalog, added on . CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.
BOD 22-01 due date: .
Required action: Apply updates per vendor instructions.
Public proof-of-concept exploits
References
- cve@mitre.org (Exploit, exploit, x_refsource_EXPLOIT-DB)
- cve@mitre.org (mailing-list, Exploit, x_refsource_BUGTRAQ, Broken Link)
- cve@mitre.org (x_refsource_CONFIRM, Vendor Advisory)
- cve@mitre.org (x_refsource_CONFIRM, Vendor Advisory)
- cve@mitre.org (Exploit, x_refsource_MISC, Broken Link)
- cve@mitre.org (x_refsource_CONFIRM, Vendor Advisory)
- cve@mitre.org (x_refsource_SECUNIA, Vendor Advisory, third-party-advisory)
- 134c704f-9b21-4f2e-91b3-4a467353bcc0 (US Government Resource)
Frequently asked questions
- What is CVE-2012-0391?
- CVE-2012-0391 is a critical-severity vulnerability in Apache Struts, classified under Code Injection. CVSS score: 9.8/10. Published 2012-01-08.
- How severe is CVE-2012-0391?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2012-0391 known to be exploited?
- Yes. CVE-2012-0391 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2022-01-21), indicating it is being actively exploited. 7 public proof-of-concept repositories are indexed.