[NEW] [medium] nmap: Vulnerability enables Denial of Service

mediumCVE-2026-72712

A remote, anonymous attacker can exploit a vulnerability in nmap to perform a Denial of Service attack.

CSIRTS triage

vendor: nmap product: nmap Denial of service

What: A remote denial of service vulnerability allows anonymous attackers to crash or degrade nmap service.
Who is affected: All nmap deployments exposed to untrusted network input are vulnerable.
Urgency: Medium; not yet exploited in the wild, but DoS impact warrants timely patching.
Action: Update to the latest patched version of nmap.

AI-assisted analysis generated from the source advisory — verify against the original.

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Details

Source: CERT-Bund (BSI) Security Advisories (DE · national-cert · site)
Severity: medium
Published: 2026-08-12
Exploitation: Not in CISA KEV at last sync
Language: Machine-translated to English — verify against the original

Original advisory: https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-2787

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Low exploitation riskCVE-2026-727120.42% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 36% of all EPSS-scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2026-72712	coverage & exploitation status	NVD · CVE.org

Same CVEs, other sources

How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.

Recent advisories for nmap

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

mediumCVE-2026-76372: In Nmap Scanner versions below 3.0.15, a user who holds a role that can edit, create, or run p…nvd · 2026-08-19
medium[UPDATE] [medium] nmap: Vulnerability allows denial of servicecert-bund · 2026-08-18
mediumCVE-2026-72712: Nmap versions up to and including 7.99 contains a denial of service vulnerability that allows …nvd · 2026-08-11
mediumCVE-2026-72712: Nmap 7.99 Denial of Service via Zero-Length TCP Option Packetmsrc · 2026-08-11
medium[NEW] [medium] nmap: Vulnerability allows denial of servicecert-bund · 2026-07-30
mediumCVE-2026-58058: Nmap through 7.99 does not keep the IPv6 extension-header walk within the captured packet in i…nvd · 2026-06-28