What is CVE-2017-12616?

CVE-2017-12616 is a high-severity vulnerability in Apache Tomcat, classified under Information Disclosure. CVSS score: 7.5/10. Published 2017-09-19.

How severe is CVE-2017-12616?

High severity. CVSS v3 base score is 7.5 out of 10.

Is CVE-2017-12616 known to be exploited?

20 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Information disclosure in Apache Tomcat

CVE-2017-12616

When using a VirtualDirContext with Apache Tomcat 7.0.0 to 7.0.80 it was possible to bypass security constraints and/or view the source code of JSPs for resources served by the VirtualDirContext using a specially crafted request.

Vulnerability class: Information Disclosure

Published 2017-09-19 · last modified 2026-10-15.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.701 (99.4th percentile), scored 2026-10-17.

High probability of exploitation in the next 30 days — patch promptly. 99th percentile — 99.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.701 · newest: 0.701 · change: 0.000

Affected products

Apache Tomcat — versions 7.0.0, 7.0.1, 7.0.2
Apache Software Foundation Tomcat — versions 7.0.0 to 7.0.80

Weakness classification (CWE)

CWE-200 — Information Disclosure

Public proof-of-concept exploits

References

www.securitytracker.com/id/1039393 (VDB Entry, Third Party Advisory, vdb-entry)
support.hpe.com/hpsc/doc/public/display
www.synology.com/support/security/Synology_SA_17_54_Tomcat
access.redhat.com/errata/RHSA-2018:0465 (vendor-advisory)
usn.ubuntu.com/3665-1/ (vendor-advisory)
www.securityfocus.com/bid/100897 (VDB Entry, Third Party Advisory, vdb-entry)
access.redhat.com/errata/RHSA-2018:0466 (vendor-advisory)
security.netapp.com/advisory/ntap-20171018-0001/
lists.apache.org/thread.html/1df9b4552464caa42047062fe7175da0da06c18ecc8daf9925… (mailing-list)
lists.debian.org/debian-lts-announce/2018/06/msg00008.html (mailing-list)

Frequently asked questions

What is CVE-2017-12616?: CVE-2017-12616 is a high-severity vulnerability in Apache Tomcat, classified under Information Disclosure. CVSS score: 7.5/10. Published 2017-09-19.
How severe is CVE-2017-12616?: High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2017-12616 known to be exploited?: 20 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.