CVE-2023-33759 Auth bypass in n/a

Critical 9.8 Published 25 Jan 2024 Updated 30 May 2025

Attackers can bypass authentication via brute force attacks due to lack of attempt restrictions in SpliceCom Maximiser Soft PBX.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2023-33759?

CVE-2023-33759 is a critical authentication bypass vulnerability in n/a, published on 25 Jan 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

SpliceCom Maximiser Soft PBX v1.5 and before does not restrict excessive authentication attempts, allowing attackers to bypass authentication via a brute force attack.

Weakness: CWE-307

Which versions are affected by CVE-2023-33759?

It affects 1 product.

Products include Splicecom Maximiser Soft Pbx.

How do I fix CVE-2023-33759?

No fix has been published for CVE-2023-33759 yet. Limit exposure of the affected software until one is available.

Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.

Is CVE-2023-33759 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-33759 exists.

Sources

Also known as GHSA-q9p8-42p3-gq3h.