CVE-2017-9791

CRITICAL
9.8
CVSS Score
Published: July 10, 2017 at 04:00 PM UTC
Updated: June 17, 2026 at 01:28 AM UTC
1 product affected across 1 vendorStruts

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Severity
CRITICAL9.8
Exploitation
CISA KEV
Exploit prediction
EPSS 99%
SSVC
Active

Actively Exploited

CISA Known Exploited Vulnerabilities (KEV) Catalog

EPSS Score98.9%

EPSS (Exploit Prediction Scoring System) estimates a 98.9% chance this CVE is exploited in the wild within the next 30 days — higher than 100% of all CVEs. It complements CVSS: a high EPSS on a mid-severity CVE can still be urgent.

The Struts 1 plugin in Apache Struts might allow remote code execution via a malicious field value passed in a raw message to the ActionMessage.

Required Action
Apply updates per vendor instructions.
Ransomware Use
Unknown
Added to KEV
Feb 10, 2022
Remediation Due
Aug 10, 2022
1539 days overdue

Description

The Struts 1 plugin in Apache Struts 2.1.x and 2.3.x might allow remote code execution via a malicious field value passed in a raw message to the ActionMessage.

Affected

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (8)

x_refsource_CONFIRMMitigationVendor Advisory
http://struts.apache.org/docs/s2-048.html
VDB Entryx_refsource_BIDBroken LinkThird Party Advisory
http://www.securityfocus.com/bid/99484
VDB Entryx_refsource_SECTRACKBroken LinkThird Party Advisory
http://www.securitytracker.com/id/1038838
Exploitx_refsource_EXPLOIT-DBThird Party AdvisoryVDB Entry
https://www.exploit-db.com/exploits/42324/
Exploitx_refsource_EXPLOIT-DBThird Party AdvisoryVDB Entry
https://www.exploit-db.com/exploits/44643/
US Government Resource
Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2017-9791

SSVC — Action Prioritization

SSVCActiveAutomatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

9.8CRITICALCISA-ADP
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-20

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