CVE-2020-1745

Name: CVE-2020-1745
Creator: NVD / NIST
Published: 2020-04-28T15:15:13.037+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 4.84%

Last modified Jun 17, 2026

CVE-2020-1745 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. A file inclusion vulnerability was found in the AJP connector enabled with a default AJP configuration port of 8009 in Undertow version 2.0.29.Final and before and was fixed in 2.0.30.Final. A remote, unauthenticated attacker could exploit this vulnerability to read web application files from a vulnerable server. EPSS estimates a 4.84% chance of exploitation in the next 30 days.

Description

A file inclusion vulnerability was found in the AJP connector enabled with a default AJP configuration port of 8009 in Undertow version 2.0.29.Final and before and was fixed in 2.0.30.Final. A remote, unauthenticated attacker could exploit this vulnerability to read web application files from a vulnerable server. In instances where the vulnerable server allows file uploads, an attacker could upload malicious JavaServer Pages (JSP) code within a variety of file types and trigger this vulnerability to gain remote code execution.

Metrics

CVSS 3.1

9.8/10

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

EPSS Probability

4.84%

90.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-285

Affected Software

Vendor	Product	Versions
Redhat	Undertow	<= 2.0.29

References

https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-1745Issue Tracking, Third Party Advisory
https://meterpreter.org/cve-2020-1938-apache-tomcat-ajp-connector-remote-code-execution-vulnerability-alert/Not Applicable
https://security.netapp.com/advisory/ntap-20240216-0011/
https://www.cnvd.org.cn/webinfo/show/5415Not Applicable
https://www.tenable.com/blog/cve-2020-1938-ghostcat-apache-tomcat-ajp-file-readinclusion-vulnerability-cnvd-2020-10487Not Applicable
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-1745Issue Tracking, Third Party Advisory
https://meterpreter.org/cve-2020-1938-apache-tomcat-ajp-connector-remote-code-execution-vulnerability-alert/Not Applicable
https://security.netapp.com/advisory/ntap-20240216-0011/
https://www.cnvd.org.cn/webinfo/show/5415Not Applicable
https://www.tenable.com/blog/cve-2020-1938-ghostcat-apache-tomcat-ajp-file-readinclusion-vulnerability-cnvd-2020-10487Not Applicable

Timeline

Published: Apr 28, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-1745?

How severe is CVE-2020-1745?

CVE-2020-1745 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 4.84% probability of exploitation in the next 30 days.

How do I fix CVE-2020-1745?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-1745?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST