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Weekly Signal
Live intelligence Updated 19 Aug 2026 · 20:27 UTC

Apache, Netapp, Redhat · Tomcat, 7-mode Transition Tool, Oncommand Balance +19 more

CVE-2017-12615

Apache Tomcat on Windows Remote Code Execution Vulnerability

Recommended action

Treat this as an immediate remediation priority. Apply updates per vendor instructions.

View response plan
CVSS8.1
EPSS99.6%
KEVYes
ExploitationConfirmed exploitation
PatchPatch or guidance available ↓

Assessment

Why it matters

CISA lists this vulnerability as known to be exploited; exploitation is confirmed; EPSS is 99.6%; technical severity is CVSS 8.1.

When running Apache Tomcat 7.0.0 to 7.0.79 on Windows with HTTP PUTs enabled (e.g. via setting the readonly initialisation parameter of the Default 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.

Who should care

  • Teams operating Tomcat, 7-mode Transition Tool, Oncommand Balance +19 more
  • Vulnerability and exposure management teams
  • Security operations teams monitoring exploitation activity

Response plan

What I would do

  1. Confirm whether Tomcat, 7-mode Transition Tool, Oncommand Balance +19 more is present in the environment.
  2. Identify affected versions and establish whether vulnerable services are exposed or reachable.
  3. Apply updates per vendor instructions.
  4. Review relevant security telemetry for evidence of attempted or successful exploitation.
  5. Document the remediation decision and track it to verified completion.

Vendor remediation

Patch and remediation links

Use the vendor source below to confirm the correct fixed version, package or mitigation for your affected product.

Technical details

CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE
CWE-434
Affected versions
Apache Tomcat (Start Including: 7.0.0, End Including: 7.0.79); Netapp 7-mode Transition Tool (Version: -); Netapp Oncommand Balance (Version: -); Netapp Oncommand Shift (Version: -); Redhat Enterprise Linux Desktop (Version: 7.0); Redhat Enterprise Linux Eus (Version: 7.7); Redhat Enterprise Linux Eus Compute Node (Version: 7.7); Redhat Enterprise Linux For Ibm Z Systems (Version: 7.0 s390x)
Published
19 September 2017
Attack vector
Network
Privileges required
None
User interaction
None

Signal timeline

  1. CVE published
  2. Added to CISA KEV
  3. Latest EPSS score: 99.6%
  4. Signal calculated at 86

External references

Live public intelligence This assessment combines public-source evidence. Validate the affected product, version and exposure against your own environment before making a risk decision.