CVE-2025-12310 VirtFusion Email Change _settings excessive authentication

Medium 6.9 Published Updated

Attackers can bypass authentication rate limits on the email change handler, potentially enabling brute-force attacks to take over user accounts.

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-2025-12310?

CVE-2025-12310 is a medium-severity vulnerability in VirtFusion, published on 27 Oct 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A security vulnerability has been detected in VirtFusion up to 6.0.2. This vulnerability affects unknown code of the file /account/_settings of the component Email Change Handler. The manipulation leads to improper restriction of excessive authentication attempts. The attack can be initiated remotely. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Weakness: CWE-799, CWE-307

Which versions are affected by CVE-2025-12310?

How do I fix CVE-2025-12310?

No fix has been published for CVE-2025-12310 yet. Limit exposure of the affected software until one is available.

Is CVE-2025-12310 being exploited?

There is no known exploitation of CVE-2025-12310 in the wild and no public exploit code.

Sources

Also known as GHSA-mpq6-cwgf-2v34.

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