What’s Vulnerable › Vulnerabilities

CVE-2023-41999: Arcserve UDP Management Authentication Bypass

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.4% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2023-11-27 · updated 2026-06-17
• Weakness: CWE-287

Description

An authentication bypass exists in Arcserve UDP prior to version 9.2. An unauthenticated, remote attacker can obtain a valid authentication identifier that allows them to authenticate to the management console and perform tasks that require authentication.

Affected products

• Arcserve Unified Data Protection (UDP): before 9.2 — fixed in 9.2

How to fix

Upgrade to a fixed version: Arcserve Unified Data Protection (UDP) 9.2. Check the vendor advisory for mitigations.

References

• https://www.tenable.com/security/research/tra-2023-37
• https://www.tenable.com/security/research/tra-2023-37

Get alerted when CVE-2023-41999 or the next vulnerability affects your stack