CVE catalog

CVE-2026-72712

Severity: Medium · CVSS 6.9CVSS: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
Published: Aug 11, 2026, 5:35:06 PM UTC
Source: [NVD] · [CVE record]
EPSS: 0.50% · Oct 25, 2026

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.

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

Distribution	Package	Release	Version	Status
Debian	nmap	sid	`7.991+dfsg-1`	fixed
Debian	nmap	forky	`7.99+dfsg-2`	vulnerable
Debian	nmap	trixie	`7.95+dfsg-3`	vulnerable
Debian	nmap	bookworm	`7.93+dfsg1-1`	vulnerable

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	nmap	source	sid	`7.991+dfsg-1`	unimportant	Not reported	Not reported
Debian	nmap	source	forky	`(unfixed)`	unimportant	Not reported	Not reported
Debian	nmap	source	trixie	`(unfixed)`	unimportant	Not reported	Not reported
Debian	nmap	source	bookworm	`(unfixed)`	unimportant	Not reported	Not reported

OpenFactory catalog packages

[Debian 12 (Bookworm)]

[ncat]Affected
Source package: [nmap]
Details (4)
- 7.93+dfsg1-1 · amd64 · bookworm
  Affected
  nvd · nmap · debian · bookworm; nvd · nmap · debian · 12
- 7.93+dfsg1-1 · arm64 · bookworm
  Affected
  nvd · nmap · debian · bookworm; nvd · nmap · debian · 12
- 7.94+git20230807.3be01efb1+dfsg-4~bpo12+1 · amd64 · bookworm-backports
  Affected
  nvd · nmap · debian · bookworm; nvd · nmap · debian · 12
- 7.94+git20230807.3be01efb1+dfsg-4~bpo12+1 · arm64 · bookworm-backports
  Affected
  nvd · nmap · debian · bookworm; nvd · nmap · debian · 12
[ndiff]Affected
Source package: [nmap]
Details (4)
- 7.93+dfsg1-1 · all · bookworm
  Affected
  nvd · nmap · debian · bookworm; nvd · nmap · debian · 12
- 7.93+dfsg1-1 · all · bookworm
  Affected
  nvd · nmap · debian · bookworm; nvd · nmap · debian · 12
- 7.94+git20230807.3be01efb1+dfsg-4~bpo12+1 · all · bookworm-backports
  Affected
  nvd · nmap · debian · bookworm; nvd · nmap · debian · 12
- 7.94+git20230807.3be01efb1+dfsg-4~bpo12+1 · all · bookworm-backports
  Affected
  nvd · nmap · debian · bookworm; nvd · nmap · debian · 12
[nmap]Affected
Details (4)
- 7.93+dfsg1-1 · amd64 · bookworm
  Affected
  nvd · nmap · debian · bookworm; nvd · nmap · debian · 12
- 7.93+dfsg1-1 · arm64 · bookworm
  Affected
  nvd · nmap · debian · bookworm; nvd · nmap · debian · 12
- 7.94+git20230807.3be01efb1+dfsg-4~bpo12+1 · amd64 · bookworm-backports
  Affected
  nvd · nmap · debian · bookworm; nvd · nmap · debian · 12
- 7.94+git20230807.3be01efb1+dfsg-4~bpo12+1 · arm64 · bookworm-backports
  Affected
  nvd · nmap · debian · bookworm; nvd · nmap · debian · 12
[nmap-common]Affected
Source package: [nmap]
Details (4)
- 7.93+dfsg1-1 · all · bookworm
  Affected
  nvd · nmap · debian · bookworm; nvd · nmap · debian · 12
- 7.93+dfsg1-1 · all · bookworm
  Affected
  nvd · nmap · debian · bookworm; nvd · nmap · debian · 12
- 7.94+git20230807.3be01efb1+dfsg-4~bpo12+1 · all · bookworm-backports
  Affected
  nvd · nmap · debian · bookworm; nvd · nmap · debian · 12
- 7.94+git20230807.3be01efb1+dfsg-4~bpo12+1 · all · bookworm-backports
  Affected
  nvd · nmap · debian · bookworm; nvd · nmap · debian · 12
[zenmap]Affected
Source package: [nmap]
Details (2)
- 7.94+git20230807.3be01efb1+dfsg-4~bpo12+1 · all · bookworm-backports
  Affected
  nvd · nmap · debian · bookworm; nvd · nmap · debian · 12
- 7.94+git20230807.3be01efb1+dfsg-4~bpo12+1 · all · bookworm-backports
  Affected
  nvd · nmap · debian · bookworm; nvd · nmap · debian · 12

[Debian 13 (Trixie)]

[ncat]Affected
Source package: [nmap]
Details (4)
- 7.95+dfsg-3 · amd64 · trixie
  Affected
  nvd · nmap · debian · 13
- 7.95+dfsg-3 · arm64 · trixie
  Affected
  nvd · nmap · debian · 13
- 7.98+dfsg-1~bpo13+1 · amd64 · trixie-backports
  Affected
  nvd · nmap · debian · 13
- 7.98+dfsg-1~bpo13+1 · arm64 · trixie-backports
  Affected
  nvd · nmap · debian · 13
[ndiff]Affected
Source package: [nmap]
Details (4)
- 7.95+dfsg-3 · all · trixie
  Affected
  nvd · nmap · debian · 13
- 7.95+dfsg-3 · all · trixie
  Affected
  nvd · nmap · debian · 13
- 7.98+dfsg-1~bpo13+1 · all · trixie-backports
  Affected
  nvd · nmap · debian · 13
- 7.98+dfsg-1~bpo13+1 · all · trixie-backports
  Affected
  nvd · nmap · debian · 13
[nmap]Affected
Details (4)
- 7.95+dfsg-3 · amd64 · trixie
  Affected
  nvd · nmap · debian · 13
- 7.95+dfsg-3 · arm64 · trixie
  Affected
  nvd · nmap · debian · 13
- 7.98+dfsg-1~bpo13+1 · amd64 · trixie-backports
  Affected
  nvd · nmap · debian · 13
- 7.98+dfsg-1~bpo13+1 · arm64 · trixie-backports
  Affected
  nvd · nmap · debian · 13
[nmap-common]Affected
Source package: [nmap]
Details (4)
- 7.95+dfsg-3 · all · trixie
  Affected
  nvd · nmap · debian · 13
- 7.95+dfsg-3 · all · trixie
  Affected
  nvd · nmap · debian · 13
- 7.98+dfsg-1~bpo13+1 · all · trixie-backports
  Affected
  nvd · nmap · debian · 13
- 7.98+dfsg-1~bpo13+1 · all · trixie-backports
  Affected
  nvd · nmap · debian · 13
[zenmap]Affected
Source package: [nmap]
Details (4)
- 7.95+dfsg-3 · all · trixie
  Affected
  nvd · nmap · debian · 13
- 7.95+dfsg-3 · all · trixie
  Affected
  nvd · nmap · debian · 13
- 7.98+dfsg-1~bpo13+1 · all · trixie-backports
  Affected
  nvd · nmap · debian · 13
- 7.98+dfsg-1~bpo13+1 · all · trixie-backports
  Affected
  nvd · nmap · debian · 13

Observed: Oct 25, 2026, 7:23:59 AM UTC

References

[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX]