CVE-2019-25631 AIDA64 Business 5.99.4900 SEH Buffer Overflow via EggHunter

High 8.6 Published 24 Mar 2026 Updated 15 Jul 2026

Local attackers can execute arbitrary code via SEH buffer overflow in AIDA64 Business by injecting shellcode into specific fields.

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

What is CVE-2019-25631?

CVE-2019-25631 is a high-severity memory corruption vulnerability in AIDA64 Business, published on 24 Mar 2026. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

AIDA64 Business 5.99.4900 contains a structured exception handling buffer overflow vulnerability that allows local attackers to execute arbitrary code by overwriting SEH pointers with malicious shellcode. Attackers can inject egg hunter shellcode through the SMTP display name field in preferences or report wizard functionality to trigger the overflow and execute code with application privileges.

Weakness: CWE-787

Which versions are affected by CVE-2019-25631?

It affects 1 product.

Products include Aida64 Aida64.

How do I fix CVE-2019-25631?

No fix has been published for CVE-2019-25631 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-2019-25631 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2019-25631 exists.

Sources

Also known as GHSA-j8pg-mgqw-f774.