CVE-2020-17530
Exploitation confirmed. First attested on 2021-11-03 by CISA-ADP, CISA KEV, GCVE · kevintel.
- Published2020-12-11
- WeaknessCWE-917
Am I affected?
Debian, Ubuntu or Red Hat sometimes backport a fix without changing the upstream version number: such a version reads « to verify », never « affected ».With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.
Description
Forced OGNL evaluation, when evaluated on raw user input in tag attributes, may lead to remote code execution. Affected software : Apache Struts 2.0.0 - Struts 2.5.25.
Timeline
dates in UTCObserved activity
isMalicious corpus · updated 2026-11-03 21:37 UTCBlock these indicators
- Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2020-17530?format=txt
- CSV export: https://api.ismalicious.com/edl/cve/CVE-2020-17530?format=csv
- TAXII collection of exploited CVEs
- The EDL and CSV take an API key on the Pro plan.
Versions per branch
NVD| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| 8.0 | = 8.0.0 | no fix published | NVD |
| 8.1 | = 8.1.0 | no fix published | NVD |
| 8.2 | = 8.2.0 | no fix published | NVD |
| 8.2 | = 8.2.3 | no fix published | NVD |
| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| 12.2 | = 12.2.1.3.0 | no fix published | NVD |
| 12.2 | = 12.2.1.4.0 | no fix published | NVD |
| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| 8.0 | = 8.0.3 | no fix published | NVD |
| 8.0 | = 8.0.6 | no fix published | NVD |
6 more products in the sources.
as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.
Products declared by the CNA1 product
As apache, the CNA that assigned this CVE, declared them in the CVE record; versions as written.
- Apache Software Foundation Apache StrutsAffected
- = Struts 2.0.0 - Struts 2.5.25no fix stated
Source: the CNA record (CVE Program), © The MITRE Corporation,CVE Terms of UseCVE recordupdated 2022-04-19
Distribution builds and vendor advisories
Packages from OSV.dev and products from the vendors' CSAF advisories.
version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.
Vendor advisories
- CVE-2020-17530 Red Hat Product Security
struts2: using forced OGNL evaluation on untrusted user input can lead to a RCE and security degradation
Fix
- CISA’s required action: Apply updates per vendor instructions.due 2022-05-03
Advisories and patches
- cwiki.apache.orgVendor Advisory
- security.netapp.comPatch
- www.oracle.comPatch
- www.oracle.comPatch
- www.oracle.comPatch
- www.oracle.comPatch
Detection
read 2026-11-03 22:42 UTC- Nuclei template
- available ProjectDiscovery
- Exploit-DB
- no entry Exploit-DB
- Proof-of-concept repositories
- 12 repositories, unverifiedsecpool2000/CVE-2020-17530ka1n4t/CVE-2020-17530wuzuowei/CVE-2020-17530Al1ex/CVE-2020-17530fengziHK/CVE-2020-17530-strust2-061 PoC-in-GitHub
- Metasploit modules
- 1 moduleexploit/multi/http/struts2_multi_eval_ognlrank: excellentModule metadata: Metasploit Framework, © Rapid7, Inc., BSD-3-Clause. Metasploit Framework
CISA Known Exploited Vulnerability
- Date Added
- 2021-11-03
- Patch Due Date
- 2022-05-03
- Ransomware Use
- Unknown
- Required Action
- Apply updates per vendor instructions.
Sources
- CISA KEVKEV entry2021-11-03
- ENISA EUVDexploitation2021-11-032021-11-03
- GCVEexploitation2021-11-03
- CISA-ADPSSVC decisionactive2025-02-06
- OpenCVESSVC decisionactive—
- CISA-ADPCVSS 3.19.82025-02-06
- NVDCVSS 3.19.8read 2026-10-23
- NVDCVSS 2.07.5read 2026-10-23
- CISA-ADPweakness (CWE)CWE-9172025-02-06
- NVDweakness (CWE)CWE-917read 2026-10-23
- FIRST EPSSEPSS score96.3 %read 2026-11-03
- PoC-in-GitHubproof of concept12read 2026-11-03
- ProjectDiscoverydetectionread 2026-11-03
- Metasploit FrameworkMetasploit modules1known since 2026-11-01
- OSVaffected packages—
- GitHub AdvisoriesadvisoryCRITICAL2021-04-09
Identifiers
- EUVD-2022-1073same flawENISA EUVD · LicenseRef-ENISA-legal-notice
- GHSA-jc35-q369-45pvsame flawGitHub Advisory Database · CC-BY-4.0
- exploit/multi/http/struts2_multi_eval_ognlexploit moduleMetasploit Framework © Rapid7 · BSD-3-Clause
Technical details
- CVSS v3 Vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Published
- 2020-12-11
- Last Modified
- 2026-06-17
- NVD status
- Analyzed
- GitHub Advisory
- GHSA-jc35-q369-45pv
Frequently asked questions
What is CVE-2020-17530?
Is CVE-2020-17530 actively exploited?
What is the CVSS score for CVE-2020-17530?
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Related vulnerabilities
Same product first, then the same vendor advisory and the same publication week.
Sources for this record
- CISA KEV · CC0-1.0 (cisagov/kev-data)
- CVE Program · CVE Program Terms of Use
- ENISA EU Vulnerability Database · ENISA legal notice §1.2 (reproduction authorised, provided the source is acknowledged)
- FIRST EPSS · EPSS terms of use (free use, attribution requested)
- GCVE · GCVE dump terms (preserve source attribution)
- GitHub Advisory Database · CC-BY-4.0 · GHSA-jc35-q369-45pv
- Metasploit Framework · BSD-3-Clause
- Nuclei templates · MIT
- NVD · Public domain (17 U.S.C. § 105) for NVD-authored data; third-party content under its own terms
- OpenCVE · OpenCVE terms of service · terms restrict redistribution
- OSV.dev · Per record, as its publisher states it: each row carries the label in sourceLicense when one is served
- PoC-in-GitHub · CC0-1.0
- Red Hat Product Security (CSAF and VEX) · CC-BY-4.0
- CISA Vulnrichment · CC0-1.0