CVE-2017-5638
Critical 9.8 Exploited in the wild (KEV) Used in ransomware campaigns
Confirmed active exploitation — CISA KEV catalog
- Name
- Apache Struts Remote Code Execution Vulnerability
- Added to catalog
- Remediation due date (US federal)
- Required action
- Apply updates per vendor instructions.
Description
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.
Metrics
- CVSS 3.1
-
9.8 (CRITICAL)
Score source: NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - EPSS — exploit probability
- 100% (percentile: 100) as of 1 November 2026
- CWE
- CWE-755
Affected products
apache: struts; ibm: storwize v3500 firmware; ibm: storwize v3500; ibm: storwize v5000 firmware; ibm: storwize v5000; ibm: storwize v7000 firmware; ibm: storwize v7000; lenovo: storage v5030 firmware; lenovo: storage v5030; hp: server automation; oracle: weblogic server; arubanetworks: clearpass policy manager; netapp: oncommand balance
References
- https://cwiki.apache.org/confluence/display/WW/S2-045 MitigationVendor Advisory
- https://cwiki.apache.org/confluence/display/WW/S2-046 MitigationVendor Advisory
- https://struts.apache.org/docs/s2-045.html MitigationVendor Advisory
- https://struts.apache.org/docs/s2-046.html MitigationVendor Advisory
- https://cwiki.apache.org/confluence/display/WW/S2-045 MitigationVendor Advisory
- https://cwiki.apache.org/confluence/display/WW/S2-046 MitigationVendor Advisory
- https://struts.apache.org/docs/s2-045.html MitigationVendor Advisory
- https://struts.apache.org/docs/s2-046.html MitigationVendor Advisory
- http://www.oracle.com/technetwork/security-advisory/cpujul2017-3236622.html PatchThird Party Advisory
- http://www.oracle.com/technetwork/security-advisory/cpujul2017-3236622.html PatchThird Party Advisory