CVE-2023-25267 Memory corruption in n/a

High 8.8 Published 15 Mar 2023 Updated 27 Feb 2025

An authenticated attacker can trigger a stack-based buffer overflow in Kerio Connect webmail via a long email address field, potentially leading to code execution or service disruption.

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

What is CVE-2023-25267?

CVE-2023-25267 is a high-severity memory corruption vulnerability in n/a, published on 15 Mar 2023. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

An issue was discovered in GFI Kerio Connect 9.4.1 patch 1 (fixed in 10.0.0). There is a stack-based Buffer Overflow in the webmail component's 2FASetup function via an authenticated request with a long primaryEMailAddress field to the webmail/api/jsonrpc URI.

Weakness: CWE-787

Which versions are affected by CVE-2023-25267?

It affects 1 product.

Products include Gfi Kerio Connect.

How do I fix CVE-2023-25267?

No fix has been published for CVE-2023-25267 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2023-25267 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-25267 exists.

Sources

Also known as GHSA-hj76-6x6q-33x8.