Zero-day vulnerability in Partition Manager

Improper access control
CVE-2025-0289

Vulnerability details

Advisory: SB2025022879 - Multiple vulnerabilities in Paragon Partition Manager

Vulnerable component: Partition Manager

CVE-ID: CVE-2025-0289

CVSSv3 score: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:H/RL:O/RC:C

CWE-ID: CWE-284 - Improper Access Control

Description:

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to improper access restrictions when validating the MappedSystemVa pointer before passing it to HalReturnToFirmware. A local user can execute arbitrary code with elevated privileges. 

Note, the vulnerability is being actively exploited in the wild.

External links:

https://kb.cert.org/vuls/id/726882

About zero-day vulnerabilities

Zero-day vulnerability is an undisclosed vulnerability in software that hackers can exploit to compromise computer programs, gain unauthorized access to sensitive data, penetrate networks, etc. We consider vulnerability a zero-day when there is no solution provided from software vendor and the vulnerability is being actively exploited by malicious actors.

Zero-day candidate is a potential zero-day vulnerability in software which might have been used in targeted attacks, however there is no evidence to support this suggestion.