SB2025040896 - Remote code execution in Microsoft Windows TCP/IP



SB2025040896 - Remote code execution in Microsoft Windows TCP/IP

Published: April 8, 2025

Security Bulletin ID SB2025040896
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Adjecent network
Highest impact Code execution

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Sensitive Data Storage in Improperly Locked Memory (CVE-ID: CVE-2025-26686)

CWE-ID: CWE-591 - Sensitive Data Storage in Improperly Locked Memory

CVSSv4: CVSS:4.0/AV:A/AC:H/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green


The vulnerability allows a remote attacker to compromise the affected system.

The vulnerability exists due to an error when handling DHCPv6 replies. A remote attacker can send a specially crafted DHCPv6 reply with a fake IPv6 address and execute arbitrary code on the system.

Successful exploitation of the vulnerability requires a user to initiate a connection to send a DHCPv6 request.


Remediation

Install update from vendor's website.