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CVE-2026-72712 Details

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.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: [email protected]CVSS-B:6.5 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://github.com/nmap/nmap/issues/3368	CISA-ADP
https://github.com/nmap/nmap	[email protected]
https://github.com/nmap/nmap/commit/7ef4ee030a0023fe22616387a000032e1a678b6a	[email protected]
https://github.com/nmap/nmap/issues/3368	[email protected]
https://www.vulncheck.com/advisories/nmap-denial-of-service-via-zero-length-tcp-option-packet	[email protected]

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-835	Loop with Unreachable Exit Condition ('Infinite Loop')	[email protected]

Affected Products

No affected product data is available for this CVE.

Change History

2 change records found show changes

Date	Action	Recorded By
Aug 13, 2026	CVE Modified	CISA-ADP
Aug 11, 2026	New CVE Received	[email protected]