Vulnerability intelligence

CVE-2017-5638

Apache Struts Remote Code Execution Vulnerability

The Jakarta Multipart parser in Apache Struts 2 2.3.x before 2.3.32 and 2.5.x before 2.5.10.1 has incorrect exception handling and error-message generation during file-upload attempts, which allows remote attackers to execute arbitrary commands via a crafted Content-Type, Content-Disposition, or Content-Length HTTP header, as exploited in the wild in March 2017 with a Content-Type header containing a #cmd= string.

CVSS Score

9.8

Critical

EPSS — Exploit Probability

100%

Riskier than 100% of all CVEs · checked 2026-10-05

Exploitation

Confirmed in the wild

Used in ransomware campaigns

Remediation

unknown

Federal deadline 2022-05-03