CVE-2017-12617
Apache Tomcat Remote Code Execution Vulnerability
- Published
- Oct 3, 2017
- Updated
- Oct 21, 2025
- Assigning CNA
- apache
- Evidence observed
- Oct 9, 2017
Primary CVSS
nvd · CVSS 3.1
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:HHigh · next 30 days
- Percentile
- 100.0%
- Model date
- Sep 21, 2026
EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.
CISA Known Exploited
This CVE appears in the CISA Known Exploited Vulnerabilities catalog.
Summary
When running Apache Tomcat versions 9.0.0.M1 to 9.0.0, 8.5.0 to 8.5.22, 8.0.0.RC1 to 8.0.46 and 7.0.0 to 7.0.81 with HTTP PUTs enabled (e.g. via setting the readonly initialisation parameter of the Default servlet to false) it was possible to upload a JSP file to the server via a specially crafted request. This JSP could then be requested and any code it contained would be executed by the server.
Sources
13- CVE-2017-12617Exploit
Apache Tomcat < 9.0.1 (Beta) / < 8.5.23 / < 8.0.47 / < 7.0.8 - JSP Upload Bypass / Remote Code Execution
- CVE-2017-12617Exploit
Improved version of PikaChu CVE
- CVE-2017-12617Exploit
CVE-2017-12617 is a critical vulnerability leading to Remote Code Execution (RCE) in Apache Tomcat.
Responsible use
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