CVE-2019-25591 DNSS Domain Name Search Software 2.1.8 Denial of Service
Local attackers can crash the DNSS Domain Name Search Software by submitting an excessively long string in the registration field.
- 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-2019-25591?
CVE-2019-25591 is a medium-severity memory corruption vulnerability in nsauditor DNSS Domain Name Search Software, published on 22 Mar 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
DNSS Domain Name Search Software 2.1.8 contains a buffer overflow vulnerability in the registration code input field that allows local attackers to crash the application by submitting an excessively long string. Attackers can trigger a denial of service by pasting a malicious registration code containing 300 repeated characters into the Name/Key field via the Register menu option.
Weakness: CWE-787
Which versions are affected by CVE-2019-25591?
How do I fix CVE-2019-25591?
No fix has been published for CVE-2019-25591 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-2019-25591 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2019-25591 exists.
Sources
Also known as GHSA-cc43-7p79-8wx6, UBUNTU-CVE-2019-25591.