Is CVE-2020-17530 in the CISA KEV catalog?

Yes. CVE-2020-17530 is on the CISA Known Exploited Vulnerabilities list, added 2021-11-03.

What is the CVSS severity of CVE-2020-17530?

CVE-2020-17530 has a CVSS v3 base score of 9.8 (CRITICAL).

What is the EPSS score for CVE-2020-17530?

CVE-2020-17530 has an EPSS score of 95.92% (100th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2020-17530?

Upgrade struts to 2.5.30 or later.

CVE & CISA-KEV Catalog

CVE-2020-17530

CRITICALCISA KEVEPSS 100th pctl

9.8

CVSS v3

NVD

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.

CWE-917

How to fix

Remediation Available

strutsNVD

Affected:>= 2.0.0, < 2.5.30Fixed in:2.5.30CVE-2020-17530derived from NVD

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploit Intelligence

95.92%probability of exploitation in 30 days

100thpercentile

Very high risk: more likely to be exploited than 100% of all known CVEs.

Known Exploited Vulnerability (CISA KEV)

Apache Struts Remote Code Execution Vulnerability

Forced Object-Graph Navigation Language (OGNL) evaluation in Apache Struts, when evaluated on raw user input in tag attributes, can lead to remote code execution.

Apply updates per vendor instructions.

Remediation due: 2022-05-03

References

Patch6

Vendor Advisory1

cwiki.apache.org

Third-Party Advisory4

Government Resource1

cisa.gov

Related Vulnerabilities

Other CWE-917 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2022-26134	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2021-44228	Critical	10.0	100%	KEV + Ransom	Fix
CVE-2021-26084	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2021-45046	Critical	9.0	100%	KEV + Ransom	Fix
CVE-2022-22963	Critical	9.8	100%	KEV	-
CVE-2020-10199	High	8.8	99%	KEV	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-10-27.