Is CVE-2017-9805 in the CISA KEV catalog?

Yes. CVE-2017-9805 is on the CISA Known Exploited Vulnerabilities list, added 2021-11-03.

What is the CVSS severity of CVE-2017-9805?

CVE-2017-9805 has a CVSS v3 base score of 8.1 (HIGH).

What is the EPSS score for CVE-2017-9805?

CVE-2017-9805 has an EPSS score of 99.46% (100th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2017-9805?

Upgrade struts to 2.5.13 or later.

CVE & CISA-KEV Catalog

CVE-2017-9805

HIGHCISA KEVEPSS 100th pctl

8.1

CVSS v3

NVD

Description

The REST Plugin in Apache Struts 2.1.1 through 2.3.x before 2.3.34 and 2.5.x before 2.5.13 uses an XStreamHandler with an instance of XStream for deserialization without any type filtering, which can lead to Remote Code Execution when deserializing XML payloads.

CWE-502Deserialization of Untrusted Data

How to fix

Remediation Available

strutsNVD

Affected:>= 2.5.0, < 2.5.13Fixed in:2.5.13CVE-2017-9805derived 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 ComplexityHigh

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

99.46%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 Deserialization of Untrusted Data Vulnerability

Apache Struts REST Plugin uses an XStreamHandler with an instance of XStream for deserialization without any type filtering, which can lead to remote code execution when deserializing XML payloads.

Apply updates per vendor instructions.

Remediation due: 2022-05-03

References

Patch1

oracle.com

Exploit1

exploit-db.com

Vendor Advisory3

Third-Party Advisory6

Government Resource1

cisa.gov

Other references1

lgtm.com

Related Vulnerabilities

Other CWE-502 (Deserialization of Untrusted Data) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2023-0669	High	7.2	100%	KEV + Ransom	Fix
CVE-2021-44228	Critical	10.0	100%	KEV + Ransom	Fix
CVE-2021-35464	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2023-29300	Critical	9.8	100%	KEV + Ransom	-
CVE-2025-53770	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2022-41082	High	8.0	100%	KEV + Ransom	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 2026-04-21.