CVE-2017-12615Known exploitationPublic exploitNetwork attack vectorHinoki check available

Unauthenticated code execution via crafted JSP uploads

Published Sep 19, 2017 · Updated Aug 6, 2026

RCE in Apache Tomcat 7.0.0 through 7.0.79 allows remote attackers to execute code via crafted JSP uploads on Windows. Crafted PUT paths bypass JSP upload restrictions, causing the DefaultServlet to save attacker-supplied JSP code that executes when subsequently requested. Exploitation requires HTTP PUT writes to be enabled, such as by setting readonly to false; the default read-only configuration rejects these writes, and execution occurs within the server process.

CVSS severity8.1
High
EPSS probability99.71%
Next 30 days · Nov 1, 2026
Known exploitationReported
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

RCE in Apache Tomcat 7.0.0 through 7.0.79 allows remote attackers to execute code via crafted JSP uploads on Windows. Crafted PUT paths bypass JSP upload restrictions, causing the DefaultServlet to save attacker-supplied JSP code that executes when subsequently requested. Exploitation requires HTTP PUT writes to be enabled, such as by setting readonly to false; the default read-only configuration rejects these writes, and execution occurs within the server process.

The record

CVE
CVE-2017-12615
Published
Sep 19, 2017
Updated
Aug 6, 2026
Vendor
The Apache Software Foundation
Product
Apache Tomcat
Classifications
CWE-434, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 19, 2017CVE publishedPublication date reported by the CVE source.
  2. Aug 6, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=7.0.0 to 7.0.79

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

The Apache Software Foundation · Apache Tomcatversion=7.0.0 to 7.0.79

Published CVSS scores

8.1NIST NVDCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
8.1GitHub Advisory DatabaseCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:H
8.1CISA-ADPCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Activity data is delayed. The latest report is Sep 28, 2026.

Daily unique IPsShadowserver observations through Sep 28, 2026. Gaps indicate unavailable data.
Sep 22, 2026Sep 28, 2026
View daily counts
Reporting dayUnique IPs
Sep 22, 2026Unavailable
Sep 23, 2026Unavailable
Sep 24, 2026Unavailable
Sep 25, 2026Unavailable
Sep 26, 20261
Sep 27, 2026Unavailable
Sep 28, 2026Unavailable
Latest reporting daySep 28, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationReported
Public exploitPublished

Weakness, pattern, technique

CWE-434Unrestricted Upload of File with Dangerous Type
T1190Exploit Public-Facing Application

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Reported exploitation

Technologies

Your stack

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Your stack

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