Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG) in HFS - CVE-2026-61500

 

Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG) in HFS - CVE-2026-61500

Published: October 6, 2026


Vulnerability identifier: #VU153314
CSH Severity: Medium
CVSS v4: 9.1 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-61500
CWE-ID: CWE-338
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote attacker to forge authenticated sessions.

The vulnerability exists due to use of predictable random values in session and login-handshake identifiers when generating session-related secrets. A remote attacker can predict application pseudorandom values to forge authenticated sessions.


Affected software

HFS

How to mitigate CVE-2026-61500

Install security update from vendor's website.

HFS - update to 3.2.1

External References

Related Security Bulletins