Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG) in Core Privileged Access Manager (BoKS) - CVE-2026-9864

 

Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG) in Core Privileged Access Manager (BoKS) - CVE-2026-9864

Published: October 6, 2026


Vulnerability identifier: #VU153302
CSH Severity: Medium
CVSS v4: 6.3 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-9864
CWE-ID: CWE-338
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote attacker to predict machine-account passwords.

The vulnerability exists due to use of a cryptographically weak pseudo-random number generator in the adjoin utility when generating machine-account passwords during Active Directory join or password renewal operations. A remote attacker can estimate when a password was generated to predict machine-account passwords.


Affected software

Core Privileged Access Manager (BoKS)

How to mitigate CVE-2026-9864

Install security update from vendor's website.


External References

Related Security Bulletins