🛡️ CVE-2025-34520
🔴 CVSS 9.8 — Critical ✅ No Known Exploit CWE-288 NVD
9.8
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

An authentication bypass vulnerability in Arcserve Unified Data Protection (UDP) allows unauthenticated attackers to gain unauthorized access to protected functionality or user accounts. By manipulating specific request parameters or exploiting a logic flaw, an attacker can bypass login mechanisms without valid credentials and access administrator-level features. This vulnerability affects all UDP versions prior to 10.2. UDP 10.2 includes the necessary patches and requires no action. Versions 8.0 through 10.1 are supported and require either patch application or upgrade to 10.2. Versions 7.x and earlier are unsupported or out of maintenance and must be upgraded to 10.2 to remediate the issue.

Details

Severity CRITICAL
CVSS Score 9.8
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE CWE-288
Public Exploit ✅ No
Source NVD
Published 2025-08-27
Updated 2026-06-02
Modified 2025-09-09
Fix URL N/A

Affected Packages

Software From version Fixed in
udp

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