CVE-2026-72939

Null pointer dereference in Windows Routing and Remote Access Service (RRAS) allows an authorized attacker to deny service over a network.

Scoring

Severity

MEDIUM

CVSS base score

6.5

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C

CWE

CWE-476

Published

2026-09-08

Last modified

2026-09-09

Affected products

• Microsoft Windows 10 Version 1607
• Microsoft Windows 10 Version 1809
• Microsoft Windows 10 Version 21H2
• Microsoft Windows 10 Version 22H2
• Microsoft Windows 11 version 23H2
• Microsoft Windows 11 Version 23H2
• Microsoft Windows 11 Version 24H2
• Microsoft Windows 11 Version 25H2

Weakness type

• CWE-476

Related vulnerabilities

• CVE-2026-86547 — mrubyc through 4.0.0 NULL Pointer Dereference via OP_ENTER
• CVE-2026-66303 — Skype for Business and Lync Denial of Service Vulnerability
• CVE-2026-77901 — Microsoft Office Word Remote Code Execution Vulnerability
• CVE-2026-70575 — Windows Schannel Denial of Service Vulnerability
• CVE-2026-69881 — Windows Internet Key Exchange (IKE) Extension Denial of Service Vulnerability
• CVE-2026-69384 — Virtual Hard Disk (VHD) Miniport Driver Denial of Service Vulnerability
• CVE-2026-62762 — Windows Active Directory Domain Services Denial of Service Vulnerability
• CVE-2026-72949 — Windows SMB Server Network Transport Driver (srvnet.sys) Denial of Service Vulnerability

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