CVE-2017-12617Apache Tomcat Remote Code Execution Vulnerability

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.

8.1 HIGHEPSS 99.96%⚡ Known Exploited (CISA KEV)NVD: Analyzed

Last updated: 2026-08-25 16:28 UTC

OverviewCVSS details

8.1HIGHCVSS 3.1

Score source: NVD
NVD status: Analyzed
Published: Oct 4, 2017
Assigner: apache

Affected

Apache Tomcat (Apache Software Foundation)

Versions: 9.0.0.M1 to 9.0.0 · 8.5.0 to 8.5.22

All affected versions →

Exploitation

Public exploit: Yes · 2 references
CISA KEV: Listed · Mar 25, 2022
KEV due date: Apr 15, 2022
Ransomware use: Unknown
SSVC: Exploitation active · Automatable no · Impact total

EPSS · FIRST, scored Nov 8

99.96%chance of exploitation in 30 days

Higher than 99.97% of CVEs

CVSS 3.1 · NVD

8.1High

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack vector: Network
Attack complexity: High
Privileges required: None
User interaction: None
Scope: Unchanged
Confidentiality impact: High
Integrity impact: High
Availability impact: High

CVSS 2.0 · NVD

6.8Medium

AV:N/AC:M/Au:N/C:P/I:P/A:P

Attack vector: Network
Attack complexity: Medium
Authentication: None
Confidentiality impact: Partial
Integrity impact: Partial
Availability impact: Partial

NVD status: Analyzed

Overview Affected Products References

NVD CVE.org

Overview

Severity

Score	Severity	Version	Vector String
8.1	HIGH	3.1NVD	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
6.8	MEDIUM	2.0NVD	AV:N/AC:M/Au:N/C:P/I:P/A:P

CISA required action

⚡ Known exploited · remediation due Apr 15, 2022

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Details

CVE ID: CVE-2017-12617
Status: Analyzed
Assigner (CNA): apache
Published: Oct 4, 2017
Last modified: 2026-08-25 16:28 UTC
Weaknesses: CWE-434

Sources

Refreshed hourly from the sources above. Last fetched 2026-11-09 14:13 UTC.