CVE-2018-25282 Nmap 7.70 Denial of Service via XML Entity Expansion
Local attackers can crash Nmap ZenMap by importing malicious XML files with exponential entity expansion, causing resource exhaustion.
- 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-2018-25282?
CVE-2018-25282 is a medium-severity vulnerability in ZenMap, published on 26 Apr 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Nmap 7.70 contains a denial of service vulnerability that allows local attackers to crash the application by processing malicious XML files with exponential entity expansion. Attackers can create a crafted XML file with nested entity definitions and open it through ZenMap's scan import functionality to cause the program to consume excessive system resources and crash.
Weakness: CWE-674
Which versions are affected by CVE-2018-25282?
How do I fix CVE-2018-25282?
No fix has been published for CVE-2018-25282 yet. Limit exposure of the affected software until one is available.
Is CVE-2018-25282 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2018-25282 exists.
Sources
Also known as GHSA-fjcc-fh45-xq5m.