CVEvulnerability
CVE-2026-72712
6.9 MEDIUM
Official page ↗
- Status
- Awaiting Analysis
- Published
- 2026-08-11
- Last modified
- 2026-10-24
- Assigner
- [email protected]
- CVSS 4.0 ([email protected])
- 6.9 MEDIUM — CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
- CVSS 3.1 ([email protected])
- 6.5 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
- Weaknesses
- CWE-835
Description
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.
Related
Weakness · CWE (1)
- CWE-835 Loop with Unreachable Exit Condition weakness
References
- https://github.com/nmap/nmap github.com
- https://github.com/nmap/nmap/commit/7ef4ee030a0023fe22616387a000032e1a678b6a github.com
- https://github.com/nmap/nmap/issues/3368 github.com
- https://www.vulncheck.com/advisories/nmap-denial-of-service-via-zero-length-tcp-option-packet www.vulncheck.com
- https://github.com/nmap/nmap/issues/3368 github.com