SB2026081207 - Information disclosure in Microsoft COM for Windows



SB2026081207 - Information disclosure in Microsoft COM for Windows

Published: August 12, 2026

Security Bulletin ID SB2026081207
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Local access
Highest impact Information disclosure

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Use of uninitialized resource (CVE-ID: CVE-2026-59136)

CWE-ID: CWE-908 - Use of Uninitialized Resource

CVSSv4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N]


The vulnerability allows a local user to bypass certain security restrictions.

The vulnerability exists due to usage of uninitialized resources in Microsoft COM for Windows. A local user can pass specially crafted data to the application, trigger uninitialized usage of resources and gain access to sensitive information on the system.


Remediation

Install update from vendor's website.