CVE-2024-25004 Memory corruption in n/a

High 7.8 Published 9 Feb 2024 Updated 15 May 2025

A stack-based buffer overflow in KiTTY allows attackers to execute arbitrary code via malicious username input.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Local or same network only
Victim action needed: Not needed
Fix: None listed

What is CVE-2024-25004?

CVE-2024-25004 is a high-severity memory corruption vulnerability in n/a, published on 9 Feb 2024. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

KiTTY versions 0.76.1.13 and before is vulnerable to a stack-based buffer overflow via the username, occurs due to insufficient bounds checking and input sanitization (at line 2600). This allows an attacker to overwrite adjacent memory, which leads to arbitrary code execution.

Weakness: CWE-787

Which versions are affected by CVE-2024-25004?

It affects 1 product.

Products include 9bis Kitty.

How do I fix CVE-2024-25004?

No fix has been published for CVE-2024-25004 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-2024-25004 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2024-25004 exists.

Public exploit code: 1 Exploit-DB entry.

Sources

Also known as GHSA-ffgq-5r6g-59g7.