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CVE-2017-12617

Apache Tomcat Remote Code Execution Vulnerability

  • High 8.1
  • Exploited: added to CISA KEV 25 Mar 2022
  • A public exploit reference is listed

Description

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.

Key facts

Published
3 Oct 2017
Last changed
21 Oct 2025
Assigned by
apache
KEV added
25 Mar 2022
KEV fix due
15 Apr 2022
EPSS
99.968% likely to be exploited in the next 30 days, higher than 99.977% of CVEs (scores for 15 Nov 2026)
SSVC (CISA)
Exploitation: active; Automatable: no; Technical impact: total

Severity scores

Each score is shown as its source gave it. They are not averaged or merged.

  • 8.1CVSS 3.1, Highfrom CISA (ADP container)CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

What to do

  • Apply updates per vendor instructions.CISA KEV required action

Historical context and remediation

This reference retains the original CVE publication date. A recent record update does not mean a new attack occurred.

No separately sourced impact summary is available on this page yet. Consult the description, version data and dated exploitation evidence.

Version statuses below come from the CNA. An “unaffected” version is not necessarily a currently supported release or proof of a patch date. EPSS is a dated risk estimate, not a count of historical attacks.

Read the original CVE record.

Affected products

VendorProductVersions
Apache Software FoundationApache Tomcat
  • 9.0.0.M1 to 9.0.0 (affected)
  • 8.5.0 to 8.5.22 (affected)
  • 8.0.0.RC1 to 8.0.46 (affected)
  • 7.0.0 to 7.0.81 (affected)

Timeline

  1. 3 Oct 2017 Published
  2. 25 Mar 2022 CVE-2017-12617 added to CISA KEV
  3. 25 Mar 2022 Added to the CISA KEV catalogue

Weakness

References