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CVE-2017-5638: Apache Struts Remote Code Execution Vulnerability

criticalknown exploitedpublic exploitCVE-2017-5638
Actively exploited. At least one CVE in this advisory is listed in the CISA Known Exploited Vulnerabilities catalog — exploitation has been observed in the wild. Treat remediation as urgent.
Apache Struts Jakarta Multipart parser allows for malicious file upload using the Content-Type value, leading to remote code execution.

CSIRTS triage

vendor: Apacheproduct: StrutsRemote code execution
What
Apache Struts allows for malicious file uploads leading to remote code execution.
Who is affected
Deployments of Apache Struts.
Urgency
Remediation is critical due to the active exploitation of this vulnerability.
Action
Update to the latest version of Apache Struts.

AI-assisted analysis generated from the source advisory — verify against the original.

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Details

Source
CISA Known Exploited Vulnerabilities (US · database · site)
Severity
critical
Published
2021-11-03
Exploitation
Observed in the wild (CISA KEV)

Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2017-5638

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2017-5638coverage & exploitation statusNVD · CVE.org

Recent advisories for Apache Struts Remote

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

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