CVE-2020-17530
CriticalExploitedPublic exploitRemote code execution in Apache Struts
Published Feb 9, 2022 · Updated Jul 8, 2026 · Also known as GHSA-jc35-q369-45pv, TR-21-0260
Key Facts
Patch immediately- CVE-2020-17530 is a critical-severity vulnerability (CVSS 9.8 v3.1) affecting Struts (Apache), Business Intelligence (Oracle), Communications Diameter Intelligence Hub (Oracle) and 6 more products.
- It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Apr 12, 2021. Public exploit code is available.
- EPSS estimates a 96% probability of exploitation in the next 30 days.
- Fixed versions are available, including Struts 2.5.30, org.apache.struts:struts2-core 2.5.26.
- Brandefense priority: patch immediately, because it is listed as exploited in the wild.
CVSS v3.1
9.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS (30-day exploit likelihood)
96%
Higher than 99.8% of all scored CVEs
Exploited in the wild
Yes
4 catalog listings
Public exploit code
Available
Proof-of-concept or weaponized module
Get the full CVE-2020-17530 brief as a PDF
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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.
Known-Exploited Catalog Listings
| Catalog | Added | Remediation due | Ransomware use |
|---|---|---|---|
| CISA KEV | Nov 3, 2021 | May 3, 2022 | Not reported |
| Industry KEV feed | Apr 12, 2021 | May 3, 2022 | Not reported |
| CIRCL KEV | Nov 3, 2021 | May 3, 2022 | Not reported |
| ENISA EUVD | Nov 3, 2021 | n/a | Not reported |
Required action: Apply updates per vendor instructions.
Affected Products
15 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| StrutsApache | >= Struts 2.0.0 - Struts 2.5.25 | 2.5.30 |
| Business IntelligenceOracle | 12.2.1.3.0, 12.2.1.4.0 | n/a |
| Communications Diameter Intelligence HubOracle | 8.0.0, 8.1.0, 8.2.0, 8.2.3 | n/a |
| Communications Policy ManagementOracle | 12.5.0 | n/a |
| Communications Pricing Design CenterOracle | 12.0.0.3.0 | n/a |
Patched Releases
Struts
2.5.30
org.apache.struts:struts2-core
2.5.26
Timeline
Added to Industry KEV feed
Apr 12, 2021
Added to CISA KEV
Nov 3, 2021
Added to CIRCL KEV
Nov 3, 2021
Added to ENISA EUVD
Nov 3, 2021
Publicly disclosed
Feb 9, 2022
Last updated
Jul 8, 2026
Weakness Type
- CWE-20 Improper Input Validation
- CWE-94 Improper Control of Generation of Code ('Code Injection')
- CWE-917 Improper Neutralization of Special Elements used in an Expression Language Statement ('Expression Language Injection')
References
- advisoryJVN#43969166
- advisoryhttp://packetstormsecurity.com/files/160721/Apache-Struts-2-Forced-Multi-OGNL-Evaluation.html
- advisoryhttps://cwiki.apache.org/confluence/display/WW/S2-061
- advisoryGHSA advisory
- advisoryhttps://nvd.nist.gov/vuln/detail/CVE-2020-17530
FAQ
Common Questions.
Forced OGNL evaluation, when evaluated on raw user input in tag attributes, may lead to remote code execution.
Affected: Struts (Apache) versions >= Struts 2.0.0 - Struts 2.5.25; Business Intelligence (Oracle) versions 12.2.1.3.0, 12.2.1.4.0; Communications Diameter Intelligence Hub (Oracle) versions 8.0.0, 8.1.0, 8.2.0, 8.2.3, among others. The full list is in the CVE brief.
It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Apr 12, 2021.
Yes. It was added on Nov 3, 2021 with a federal remediation due date of May 3, 2022.
Public exploit code is available.
Fixed versions are available, including Struts 2.5.30, org.apache.struts:struts2-core 2.5.26.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.
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