What is CVE-2017-12617?

CVE-2017-12617 is a high-severity vulnerability in Apache Tomcat, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 8.1/10. Published 2017-10-04.

How severe is CVE-2017-12617?

High severity. CVSS v3 base score is 8.1 out of 10.

Is CVE-2017-12617 known to be exploited?

Yes. CVE-2017-12617 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2022-03-25), indicating it is being actively exploited. 122 public proof-of-concept repositories are indexed.

Arbitrary file upload in Apache Tomcat

CVE-2017-12617

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.

Vulnerability class: Unrestricted File Upload

Published 2017-10-04 · last modified 2026-08-25.

CVSS v3 metric

CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 1.000 (100.0th percentile), scored 2026-09-27.

Very high probability of exploitation in the next 30 days — among the top 0.1% most-likely-to-be-exploited CVEs. 100th percentile — 100.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 1.000 · newest: 1.000 · change: 0.000

Affected products

Apache Tomcat
Apache Software Foundation Tomcat — versions 8.0.0.RC1 to 8.0.46, 9.0.0.M1 to 9.0.0, 7.0.0 to 7.0.81
NetApp Active Iq Unified Manager
NetApp Element
NetApp Oncommand Balance
NetApp Oncommand Insight
NetApp Oncommand Shift
NetApp Oncommand Workflow Automation
NetApp Snapcenter
Oracle Agile Plm — versions 9.3.3, 9.3.4, 9.3.5

Weakness classification (CWE)

CWE-434 — Unrestricted Upload of File with Dangerous Type

CISA KEV (Known Exploited Vulnerabilities)

This CVE is on the CISA KEV catalog, added on 2022-03-25. CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.

BOD 22-01 due date: 2022-04-15.

Required action: Apply updates per vendor instructions.

Public proof-of-concept exploits

References

access.redhat.com/errata/RHSA-2017:3113 (vendor-advisory, Third Party Advisory)
www.oracle.com/technetwork/security-advisory/cpujul2018-4258247.html (Patch, Third Party Advisory)
www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html (Patch, Third Party Advisory)
access.redhat.com/errata/RHSA-2017:3080 (vendor-advisory, Third Party Advisory)
support.hpe.com/hpsc/doc/public/display (Third Party Advisory)
access.redhat.com/errata/RHSA-2018:0269 (vendor-advisory, Third Party Advisory)
www.exploit-db.com/exploits/42966/ (Exploit, VDB Entry, Third Party Advisory, exploit)
support.hpe.com/hpsc/doc/public/display (Third Party Advisory)
access.redhat.com/errata/RHSA-2018:0270 (vendor-advisory, Third Party Advisory)
access.redhat.com/errata/RHSA-2018:0271 (vendor-advisory, Third Party Advisory)

Frequently asked questions

What is CVE-2017-12617?: CVE-2017-12617 is a high-severity vulnerability in Apache Tomcat, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 8.1/10. Published 2017-10-04.
How severe is CVE-2017-12617?: High severity. CVSS v3 base score is 8.1 out of 10.
Is CVE-2017-12617 known to be exploited?: Yes. CVE-2017-12617 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2022-03-25), indicating it is being actively exploited. 122 public proof-of-concept repositories are indexed.