CVE-2026-72712 (GCVE-0-2026-72712)

Vulnerability from cvelistv5 – Published: 2026-08-11 17:35 – Updated: 2026-08-14 16:51
VLAI
Title
Nmap 7.99 Denial of Service via Zero-Length TCP Option Packet
Summary
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.
Severity
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
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-13 14:12 UTC
CWE
  • CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')
Assigner
VulnCheck CNA under the mitre root
CNA scorecard B 84/100 over 6759 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Nmap Project Nmap Affected: 0 , ≤ 7.99 (custom)
    cpe:2.3:a:nmap:nmap:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-08-11 00:00
Credits
Maxim Suhanov
Show details on NVD website
To clipboard 

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    Related by attack behaviour

    Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.