CVE-2017-12615 — Apache Tomcat on Windows Remote Code Execution Vulnerability

Triage

Is it exploited, how likely is exploitation, what does it touch, and how severe do the sources call it.

CISA SSVC assessment CISA

Three decision points CISA publishes for the CVEs it assesses (SSVC 2.0.3). A stakeholder decision, not a severity score.

Remediation

Fixes and mitigations documented by the sources — linked to the original advisory.

• Documented patch — lists.apache.org (NIST National Vulnerability Database)
• Documented patch — lists.apache.org (NIST National Vulnerability Database)
• Documented patch — lists.apache.org (NIST National Vulnerability Database)
• Documented patch — lists.apache.org (NIST National Vulnerability Database)

CISA required action CISA

Apply updates per vendor instructions.

US federal deadline: Apr 15, 2022 — passed 1644 day(s) ago

First 24 hours

Ordered from the record’s own fields — exposure first, because you cannot patch what you have not found. A rule-generated starting point.

1. Identify exposed assets running the affected vendor/product/version combinations (Apache Software Foundation Tomcat, Netapp 7-mode Transition Tool, Netapp Oncommand Balance…).
2. Treat as emergency remediation: the CVE is in CISA KEV (confirmed exploitation).
3. The attack is network-based and needs no privileges: restrict exposure (ACLs, VPN, WAF) until patched.
4. Apply the fixed version or the patch documented under Remediation.
5. EPSS ahead of 100% of scored CVEs: prioritize it in the patch queue.
6. Search available logs for exploit probes matching the vulnerability class (file handling), errors and authentication anomalies.

Affected scope

Vendor, product and versions as the sources word them.

Attack characteristics

The CVSS vector, decoded. It describes the attack, not your exposure to it.

Every base score collected

Sources score independently and may disagree; each row says who scored it and under which version.

Weakness MITRE

Weakness class according to MITRE’s CWE catalog.

CWE-434 · Unrestricted Upload of File with Dangerous Type

Other CVEs with this weakness →

CISA KEV details CISA

CISA lists a CVE once it has evidence of exploitation against real targets.

CISA records ransomware use only for campaigns it has confirmed, so “Unknown” means unrecorded, not ruled out. The deadline binds US federal agencies; for everyone else it is a reference date.

Public exploits, PoCs and detection templates

Public code that demonstrates or tests the flaw raises the odds of mass exploitation — and Nuclei templates help find vulnerable assets in your environment.

Warning: public PoCs are sometimes disguised malware. Use them only for authorized testing in an isolated environment. This portal does not host exploit code — it only points to the sources.

EPSS over time FIRST

Oct 13, 2026 → Oct 14, 2026 · 2 reading(s) · max 99.64%

Detection

Read off the CVSS vector and the weakness class. Starting points, not tested rules.

• Prioritize edge telemetry for the network-reachable component (proxy, WAF, IDS/IPS).
• Monitor file creation in web directories and paths with traversal sequences (../).
• Hunt retroactively in logs from before Mar 25, 2022 (KEV listing): exploitation may have started earlier.

Timeline

What happened to this CVE, newest first.

• 2026
• Fix documented
  Oct 13, 2026 · NIST National Vulnerability Database
• Affected products added · apache/tomcat, netapp/7-mode transition tool, netapp/oncommand balance, netapp/oncommand shift, redhat/enterprise linux
  Oct 13, 2026 · NIST National Vulnerability Database
• Source status changed · Published → Analyzed
  Oct 13, 2026 · NIST National Vulnerability Database
• Record published
  Oct 13, 2026
• Affected products added · apache software foundation/apache tomcat
  Oct 13, 2026 · CVE Program (cve.org) e CISA ADP
• CVSS changed · 8.1
  Oct 13, 2026 · CVE Program (cve.org) e CISA ADP
• Source status changed · → Published
  Oct 13, 2026 · CVE Program (cve.org) e CISA ADP
• SSVC assessment updated
  Oct 13, 2026 · CVE Program (cve.org) e CISA ADP
• Added to CISA KEV (detected)
  Oct 13, 2026 · CISA Known Exploited Vulnerabilities
• Record created in this database
  Oct 13, 2026 · CISA Known Exploited Vulnerabilities
• 2022
• Added to CISA KEV catalog
  Mar 24, 2022 · CISA
• 2017
• CVE published
  Sep 19, 2017 · apache

Source activity

Repeated readings are counted rather than listed.

• 2× References added · Oct 13, 2026 – Oct 13, 2026
• 1× Official description updated · Oct 13, 2026 – Oct 13, 2026

References

20 on the record

• lists.apache.org/thread.html/r9136ff5b13e4f1941360b5a309efee2c114a14855578c3a2cbe5d19c
  mailing-list, x_refsource_MLIST, Mailing List, Patch, CVE Program (cve.org) e CISA ADP
• lists.apache.org/thread.html/845312a10aabbe2c499fca94003881d2c79fc993d85f34c1f5c77424%
  mailing-list, x_refsource_MLIST, Mailing List, Patch, CVE Program (cve.org) e CISA ADP
• lists.apache.org/thread.html/388a323769f1dff84c9ec905455aa73fbcb20338e3c7eb131457f708%
  mailing-list, x_refsource_MLIST, Mailing List, Patch, CVE Program (cve.org) e CISA ADP
• lists.apache.org/thread.html/3d19773b4cf0377db62d1e9328bf9160bf1819f04f988315086931d7%
  mailing-list, x_refsource_MLIST, Mailing List, Patch, CVE Program (cve.org) e CISA ADP
• www.cisa.gov/known-exploited-vulnerabilities-catalog
  US Government Resource, NIST National Vulnerability Database
• www.exploit-db.com/exploits/42953/
  exploit, x_refsource_EXPLOIT-DB, Third Party Advisory, VDB Entry, CVE Program (cve.org) e CISA ADP
• lists.apache.org/thread.html/8fcb1e2d5895413abcf266f011b9918ae03e0b7daceb118ffbf23f8c%
  mailing-list, x_refsource_MLIST, Issue Tracking, Mailing List, CVE Program (cve.org) e CISA ADP
• access.redhat.com/errata/RHSA-2017:3080
  vendor-advisory, x_refsource_REDHAT, Third Party Advisory, CVE Program (cve.org) e CISA ADP
• lists.apache.org/thread.html/r6d03e45b81eab03580cf7f8bb51cb3e9a1b10a2cc0c6a2d3cc92ed0c
  mailing-list, x_refsource_MLIST, Mailing List, CVE Program (cve.org) e CISA ADP
• security.netapp.com/advisory/ntap-20171018-0001/
  x_refsource_CONFIRM, Third Party Advisory, CVE Program (cve.org) e CISA ADP
• access.redhat.com/errata/RHSA-2018:0466
  vendor-advisory, x_refsource_REDHAT, Third Party Advisory, CVE Program (cve.org) e CISA ADP
• www.synology.com/support/security/Synology_SA_17_54_Tomcat
  x_refsource_CONFIRM, Third Party Advisory, CVE Program (cve.org) e CISA ADP
• github.com/breaktoprotect/CVE-2017-12615
  x_refsource_MISC, Exploit, Third Party Advisory, CVE Program (cve.org) e CISA ADP
• access.redhat.com/errata/RHSA-2017:3114
  vendor-advisory, x_refsource_REDHAT, Third Party Advisory, CVE Program (cve.org) e CISA ADP
• access.redhat.com/errata/RHSA-2018:0465
  vendor-advisory, x_refsource_REDHAT, Third Party Advisory, CVE Program (cve.org) e CISA ADP
• www.securityfocus.com/bid/100901
  vdb-entry, x_refsource_BID, Broken Link, Third Party Advisory, VDB Entry, CVE Program (cve.org) e CISA ADP
• access.redhat.com/errata/RHSA-2017:3081
  vendor-advisory, x_refsource_REDHAT, Third Party Advisory, CVE Program (cve.org) e CISA ADP
• breaktoprotect.blogspot.com/2017/09/the-case-of-cve-2017-12615-tomcat-7-put.html
  x_refsource_MISC, Exploit, CVE Program (cve.org) e CISA ADP
• www.securitytracker.com/id/1039392
  vdb-entry, x_refsource_SECTRACK, Broken Link, Third Party Advisory, VDB Entry, CVE Program (cve.org) e CISA ADP
• access.redhat.com/errata/RHSA-2017:3113
  vendor-advisory, x_refsource_REDHAT, Third Party Advisory, CVE Program (cve.org) e CISA ADP

Elsewhere on this site

Related CVEs (same products)

• Medium CVE-2026-73180 Insufficient Session Expiration vulnerability in Apache Tomcat meant that if the session… Aug 25, 2026
• High CVE-2026-65927 Off-by-one Error vulnerability in Apache Tomcat impacting the [N] flag on the rewrite… Aug 25, 2026
• High CVE-2026-66422 Improper Authorization in Apache Software Foundation Tomcat Aug 25, 2026
• Critical CVE-2026-65905 Authentication Bypass by Capture-replay in Apache Software Foundation Tomcat Aug 25, 2026
• Critical CVE-2026-65637 Improper Input Validation in Apache Software Foundation Tomcat Aug 25, 2026
• High CVE-2026-65183 TOCTOU Race Condition in Apache Software Foundation Tomcat Aug 25, 2026

Not in any source we poll

Listed rather than left blank: an empty field and an unmeasured one look identical on screen, and only one is a reason to look elsewhere.

• No confirmed IOCs, IP addresses, domains, file hashes, or malware artifacts supplied.
• No organization-specific asset inventory, compensating-control status, or patch deployment evidence supplied.
• No exploit packet captures, log samples, or incident case IDs supplied.

Answered from this record

Text assembled only from the fields above — no additional claims.

What should defenders know first?

CVE-2017-12615 is "Apache Tomcat on Windows Remote Code Execution Vulnerability", rated High. It affects Tomcat (Apache Software Foundation); versions are in the scope table. It is in CISA KEV: there is evidence of real-world exploitation. CVSS 8.1 describes technical severity. EPSS 99.64% estimates the probability of exploitation in 30 days; neither replaces your asset context. First verify whether exposed or business-critical assets run the affected versions, apply vendor fixes or mitigations, and preserve logs for review.

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