CVE-2026-72712: Nmap Project Nmap

Medium severity, CVSS 6.5. EPSS: 0.5% chance of exploitation in the next 30 days.

Nmap versions up to and including 7.99 contains a denial of service vulnerability that allows remote attackers to crash the application by sending a crafted packet containing a zero-length TCP option. The malformed packet forces the Packet:parse_options() function in nselib/packet.lua to allocate objects in an infinite loop, causing an out-of-memory condition that results in application crash.

Affected products

• Nmap Project Nmap: up to and including 7.99

Published 2026-08-11. Last modified 2026-09-24.