The REST Plugin in Apache Struts 2.1.x, 2.3.7 through 2.3.33 and 2.5 through 2.5.12 is using an outdated XStream library which is vulnerable and allow perform a DoS attack using malicious request with specially crafted XML payload.
CVE-2017-9793
This high-severity CVE scores 7.5 under NVD CVSS v3. EPSS exploit probability: 8.8% (95th percentile of EPSS-scored CVEs). GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
- High severity, but no confirmed exploitation yet
A fix is available — apply it.
- CVSS v3
- 7.5
- EG Score
- 7.5HIGHmedium confidence
- EG Risk
- 54EG Risk 54/100CISA SSVC
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 computedSeverity75% × 45%Exploitation40% × 40%Automatability30% × 15%CISA SSVC: Track at low or medium mission impact; Track* or Attend at high (mission-essential systems).Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high. - EPSS PROB
- 8.8%
- EPSS %ILE
- 95th
- KEV
- Not listed
CISA SSVCTrack at low or medium mission impact; Track* or Attend at high (mission-essential systems).
A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
Exploitation public PoC (EG-KEV: elevated) · Automatable unknown (not published for this CVE) · Technical impact partial (CVSS below 9.0). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table
Published
September 20, 2017
Last Modified
June 17, 2026
References (14)
- security@apachehttp://www.brocade.com/content/dam/common/documents/content-types/security-bulletin/brocade-security-advisory-2017-429.htm
- security@apachehttp://www.oracle.com/technetwork/security-advisory/alert-cve-2017-9805-3889403.html
- security@apachehttp://www.securityfocus.com/bid/100611
- security@apachehttp://www.securitytracker.com/id/1039262
- security@apachehttps://security.netapp.com/advisory/ntap-20180629-0001/
- security@apachehttps://struts.apache.org/docs/s2-051.html
- security@apachehttps://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170907-struts2
- af854a3a-2127-422b-91ae-364da2661108http://www.brocade.com/content/dam/common/documents/content-types/security-bulletin/brocade-security-advisory-2017-429.htm
- af854a3a-2127-422b-91ae-364da2661108http://www.oracle.com/technetwork/security-advisory/alert-cve-2017-9805-3889403.html
- af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/100611
- af854a3a-2127-422b-91ae-364da2661108http://www.securitytracker.com/id/1039262
- af854a3a-2127-422b-91ae-364da2661108https://security.netapp.com/advisory/ntap-20180629-0001/
- af854a3a-2127-422b-91ae-364da2661108https://struts.apache.org/docs/s2-051.html
- af854a3a-2127-422b-91ae-364da2661108https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170907-struts2
Affected Packages
(1 across 1 ecosystem)
Maven(1)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| org.apache.struts:struts2-rest-plugin | 2.5 ... 2.5.8 (8 versions) |
| — |
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 6× in last 7d / 26× 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.
Showing the most recent 100 of 180 total refreshes for this CVE.
- 2026-10-09 20:02 UTCEPSS rescore
- 2026-10-08 16:36 UTCEPSS rescore
- 2026-10-08 00:05 UTCOSV refresh
- 2026-10-07 23:41 UTCEPSS rescore
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- 2026-09-30 09:49 UTCEG score recompute
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- 2026-09-11 09:31 UTCEPSS rescore
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- 2026-07-26 14:51 UTCEPSS rescore
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- 2026-07-23 01:31 UTCEG score recompute
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- 2026-07-22 14:04 UTCEPSS rescore
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- 2026-07-11 17:41 UTCOSV refresh
- 2026-07-11 08:24 UTCEPSS rescore
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Related CVEs(same product + same CWE)
Same product
5 shownMaven:org.apache.struts:struts2-rest-plugin
Same CWE
10 shownCWE-20
- CVE-2017-9804EG 7.5EPSS p95HIGH
- CVE-2017-9333EG 8.8HIGH
- CVE-2017-8759NVD 7.8EG 9.0 KEVEPSS p100CRITICAL
- CVE-2017-8754EG 4.2MEDIUM
- CVE-2017-8723EG 4.3EPSS p91MEDIUM
- CVE-2017-8714EG 7.8EPSS p90HIGH
- CVE-2017-8704EG 5.3MEDIUM
- CVE-2017-8699EG 7.0EPSS p98HIGH
- CVE-2017-8682EG 8.9EPSS p99HIGH
- CVE-2017-9538EG 4.9MEDIUM
Frequently asked(5)
What is CVE-2017-9793?
When was CVE-2017-9793 disclosed?
Is CVE-2017-9793 actively exploited?
What is the CVSS score of CVE-2017-9793?
How do I remediate CVE-2017-9793?
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2017-9793
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