Is CVE-2025-54336 actively exploited?

No active exploitation of CVE-2025-54336 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2025-54336 be exploited remotely?

Yes. CVE-2025-54336 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2025-54336?

CVE-2025-54336 has a CVSS score of 9.8 (CRITICAL).

HOME VULNERABILITIESCVE-2025-54336

CRITICAL

CVE-2025-54336

CWE-697Published: August 19, 2025· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

In Plesk Obsidian 18.0.70, _isAdminPasswordValid uses an == comparison. Thus, if the correct password is "0e" followed by any digit string, then an attacker can login with any other string that evaluates to 0.0 (such as the 0e0 string). This occurs in admin/plib/LoginManager.php.

NVD Source

Technical Analysis

CVE-2025-54336 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.