CVE-2018-25432 Arm Whois 3.11 Buffer Overflow via ASLR Bypass
Local attackers can execute arbitrary code in Arm Whois by exploiting a buffer overflow to hijack exception handlers via a malicious input file.
- 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-2018-25432?
CVE-2018-25432 is a high-severity memory corruption vulnerability in Armcode Arm Whois, published on 1 Jun 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Arm Whois 3.11 contains a buffer overflow vulnerability that allows local attackers to execute arbitrary code by overwriting the structured exception handler. Attackers can craft a malicious input file with a 672-byte offset to overwrite the nSEH and SEH pointers, enabling code execution through exception handler hijacking.
Weakness: CWE-120
Which versions are affected by CVE-2018-25432?
How do I fix CVE-2018-25432?
No fix has been published for CVE-2018-25432 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-2018-25432 being exploited?
There is no known exploitation of CVE-2018-25432 in the wild and no public exploit code.
Sources
Also known as GHSA-764q-295c-4pqc.