The ParametersInterceptor in Apache Struts before 2.3.16.2 allows remote attackers to "manipulate" the ClassLoader via the class parameter, which is passed to the getClass method.
CVE-2014-0094
This CVE was only ever scored under CVSS v2.0. NVD CVSS v2.0 base 5.0 — v2 rates that MEDIUM (v2 bands: LOW 0.0–3.9 / MEDIUM 4.0–6.9 / HIGH 7.0–10.0; v2 has no CRITICAL band). Vector AV:N/AC:L/Au:N/C:N/I:P/A:N. CVSS v2 is an older, coarser metric than v3.1/v4.0 (no Scope, no User Interaction, no Attack Requirements), so it is not directly comparable to a v3 or v4 score. NVD has never re-scored this record under v3. EPSS predicts 99.6% exploitation probability in the next 30 days, which is reflected in EG Risk but does not lift the v2 base. Confidence: LOW.
- High exploitation likelihood — EPSS 100%
- Public exploit code is available (Metasploit, Exploit-DB (verified), epss top5pct, epss high, public exploit)
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v2.0 (legacy)
- 5.0MEDIUMNVD never assigned a CVSS v3 rating to this CVE
- EG Score
- 5.0(low)
- EG Risk
- 67(Track)EG Risk 67/100SSVC: Track
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity50% × 45%Exploitation100% × 40%Automatability30% × 15%Action: Routine — remediate on your standard cadence. - EPSS PROB
- 100%
- EPSS %ILE
- 100%
- KEV
- Not listed
Published
March 11, 2014
Last Modified
May 6, 2026
References (30)
- secalert@redhathttp://jvn.jp/en/jp/JVN19294237/index.html
- secalert@redhathttp://jvndb.jvn.jp/jvndb/JVNDB-2014-000045
- secalert@redhathttp://packetstormsecurity.com/files/127215/VMware-Security-Advisory-2014-0007.html
- secalert@redhathttp://secunia.com/advisories/56440
- secalert@redhathttp://secunia.com/advisories/59178
- secalert@redhathttp://struts.apache.org/release/2.3.x/docs/s2-020.html
- secalert@redhathttp://www-01.ibm.com/support/docview.wss?uid=swg21676706
- secalert@redhathttp://www.huawei.com/en/security/psirt/security-bulletins/security-advisories/hw-350733.htm
- secalert@redhathttp://www.konakart.com/downloads/ver-7-3-0-0-whats-new
- secalert@redhathttp://www.oracle.com/technetwork/topics/security/cpuapr2015-2365600.html
- secalert@redhathttp://www.securityfocus.com/archive/1/531362/100/0/threaded
- secalert@redhathttp://www.securityfocus.com/archive/1/532549/100/0/threaded
- secalert@redhathttp://www.securityfocus.com/bid/65999
- secalert@redhathttp://www.securitytracker.com/id/1029876
- secalert@redhathttp://www.vmware.com/security/advisories/VMSA-2014-0007.html
Affected Packages
(2 across 1 ecosystem)
Maven(2)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| org.apache.struts:struts2-core | 2.0.11 ... 2.3.8 (36 versions) | 2.3.16.2 | — |
| org.apache.struts.xwork:xwork-core | 2.2.1 ... 2.3.8 (23 versions) | 2.3.16.2 | — |
Data Freshness Timeline
(refreshed 4× in last 7d / 8× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-26 13:49 UTCEG score recompute▲ 5.00
- 2026-07-23 01:11 UTCEG score recompute▼ 9.00
- 2026-07-23 00:15 UTCEG score recompute
- 2026-07-22 21:53 UTCEG score recompute
- 2026-07-13 22:26 UTCEPSS rescore
- 2026-07-04 06:27 UTCEPSS rescore
- 2026-07-01 15:02 UTCEPSS rescore
- 2026-06-30 23:19 UTCEPSS rescore
- 2026-06-17 17:49 UTCEPSS rescore
- 2026-06-17 17:49 UTCEPSS rescore
- 2026-06-15 17:44 UTCEPSS rescore
- 2026-06-14 23:14 UTCEPSS rescore
- 2026-06-13 22:57 UTCEPSS rescore
- 2026-06-12 23:08 UTCEPSS rescore
- 2026-06-08 14:14 UTCEPSS rescore
- 2026-06-05 22:44 UTCEPSS rescore
- 2026-06-05 22:44 UTCEPSS rescore
- 2026-05-31 22:28 UTCEPSS rescore
- 2026-05-31 22:28 UTCEPSS rescore
- 2026-05-28 20:04 UTCEG score recompute
- 2026-05-26 13:41 UTCEPSS rescore
- 2026-05-26 13:41 UTCEPSS rescore
- 2026-05-20 22:37 UTCEPSS rescore
- 2026-05-20 22:37 UTCEPSS rescore
- 2026-05-18 21:29 UTCEPSS rescore
Show 1 moreShow fewer
- 2026-05-18 21:29 UTCEPSS rescore
Publicly available exploits
(3 references)Working exploit code is in the public domain (1 Metasploit module) (2 Exploit-DB entries). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.
- Exploit-DBEDB-33142✓ verifiedFirst seen May 2, 2014
Apache Struts - ClassLoader Manipulation Remote Code Execution (Metasploit)
Open source ↗ - Exploit-DBEDB-41690✓ verifiedFirst seen Mar 6, 2014
Apache Struts < 1.3.10 / < 2.3.16.2 - ClassLoader Manipulation Remote Code Execution (Metasploit)
Open source ↗ - Metasploitexploit/multi/http/struts_code_exec_classloader✓ verifiedFirst seen Mar 6, 2014
Apache Struts ClassLoader Manipulation Remote Code Execution
Open source ↗
Frequently asked(4)
What is CVE-2014-0094?
When was CVE-2014-0094 disclosed?
Is CVE-2014-0094 actively exploited?
How do I remediate CVE-2014-0094?
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2014-0094
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