CVE-2023-42000

Name: CVE-2023-42000
Creator: NVD / NIST
Published: 2023-11-27T17:15:08.16+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 1.47%

Last modified Jun 17, 2026

CVE-2023-42000 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. Arcserve UDP prior to 9.2 contains a path traversal vulnerability in com.ca.arcflash.ui.server.servlet.FileHandlingServlet.doUpload(). An unauthenticated remote attacker can exploit it to upload arbitrary files to any location on the file system where the UDP agent is installed.. EPSS estimates a 1.47% chance of exploitation in the next 30 days.

Description

Arcserve UDP prior to 9.2 contains a path traversal vulnerability in com.ca.arcflash.ui.server.servlet.FileHandlingServlet.doUpload(). An unauthenticated remote attacker can exploit it to upload arbitrary files to any location on the file system where the UDP agent is installed.

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

1.47%

70.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Arcserve	Udp	< 9.2

References

https://www.tenable.com/security/research/tra-2023-37Exploit, Third Party Advisory
https://www.tenable.com/security/research/tra-2023-37Exploit, Third Party Advisory

Timeline

Published: Nov 27, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-42000?

How severe is CVE-2023-42000?

CVE-2023-42000 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 1.47% probability of exploitation in the next 30 days.

How do I fix CVE-2023-42000?

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-2023-42000?

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

Scan your code now

Source: NVD / NIST