CVE-2018-25266 Angry IP Scanner 3.5.3 Denial of Service via Preferences Buffer Overflow
Local attackers can crash Angry IP Scanner by pasting a large string into the preferences dialog, causing a buffer overflow.
- 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-2018-25266?
CVE-2018-25266 is a medium-severity memory corruption vulnerability in Angryip Angry IP Scanner, published on 22 Apr 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Angry IP Scanner 3.5.3 contains a buffer overflow vulnerability in the preferences dialog that allows local attackers to crash the application by supplying an excessively large string. Attackers can generate a file containing a massive buffer of repeated characters and paste it into the unavailable value field in the display preferences to trigger a denial of service.
Weakness: CWE-787
Which versions are affected by CVE-2018-25266?
It affects 1 product.
Products include Angryip Angry Ip Scanner.
How do I fix CVE-2018-25266?
No fix has been published for CVE-2018-25266 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-2018-25266 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2018-25266 exists.
Other vulnerabilities in Angryip Angry IP Scanner
Sources
Also known as GHSA-348g-w65w-cxjq.