Nov 2026: Windows COM+ Event System Service Information Disclosure Vulnerability
CVE-2026-119855 Published on November 10, 2026

Windows COM+ Event System Service Information Disclosure Vulnerability
Buffer over-read in Windows COM+ Event System Service allows an authorized attacker to disclose information locally.

Vendor Advisory NVD

Vulnerability Analysis

Exploitation:
NONE
Automatable:
NO
Technical Impact:
PARTIAL

Weakness Type

Buffer Over-read

The software reads from a buffer using buffer access mechanisms such as indexes or pointers that reference memory locations after the targeted buffer. This typically occurs when the pointer or its index is incremented to a position beyond the bounds of the buffer or when pointer arithmetic results in a position outside of the valid memory location to name a few. This may result in exposure of sensitive information or possibly a crash.


Products Associated with CVE-2026-119855

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Affected Versions

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: Microsoft Windows 11 version 26H1: Microsoft Windows 11 Version 26H2: Microsoft Windows Server 2016: Microsoft Windows Server 2016 (Server Core installation): Microsoft Windows Server 2019: Microsoft Windows Server 2019 (Server Core installation): Microsoft Windows Server 2022: Microsoft Windows Server 2025: Microsoft Windows Server 2025 (Server Core installation):

Exploit Probability

EPSS
0.41%
Percentile
36.14%

EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.