CVE-2016-4436
Apache Struts 2 before 2.3.29 and 2.5.x before 2.5.1 allow attackers to have unspecified impact via vectors related to improper action name clean up.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (6.60%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
Apache Struts 2 before 2.3.29 and 2.5.x before 2.5.1 allow attackers to have unspecified impact via vectors related to improper action name clean up.
- CVSS 3.0
- 9.8 CRITICALCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 6.60% probability · 94th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Affected
- apache/struts
- Source
- secalert@redhat.com
EPSS 6.6% since 26 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://www-01.ibm.com/support/docview.wss?uid=ssg1S1009282Third Party Advisory
- http://www-01.ibm.com/support/docview.wss?uid=swg21987854Third Party Advisory
- http://www.oracle.com/technetwork/security-advisory/cpujul2017-3236622.html
- http://www.securityfocus.com/bid/91280Third Party Advisory
- https://struts.apache.org/docs/s2-035.htmlVendor Advisory
- http://www-01.ibm.com/support/docview.wss?uid=ssg1S1009282Third Party Advisory
- http://www-01.ibm.com/support/docview.wss?uid=swg21987854Third Party Advisory
- http://www.oracle.com/technetwork/security-advisory/cpujul2017-3236622.html
- http://www.securityfocus.com/bid/91280Third Party Advisory
- https://struts.apache.org/docs/s2-035.htmlVendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.