CVE-2026-85880 :: Enginsight Vulnerability Database

Provider	Type	Base Score	Atk. Vector	Atk. Complexity	Priv. Required	Vector
NIST	Primary	7.8 HIGH	LOCAL	LOW	LOW	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Base Score

CVSS 3.x

EPSS Score

Percentile: Unknown

Affected Products (NVD)

Vendor	Product	Version
microsoft	windows_10_1607	𝑥 < 10.0.14393.9512
microsoft	windows_10_1607	𝑥 < 10.0.14393.9512
microsoft	windows_10_1809	𝑥 < 10.0.17763.9245
microsoft	windows_10_1809	𝑥 < 10.0.17763.9245
microsoft	windows_10_21h2	𝑥 < 10.0.19044.7725
microsoft	windows_10_21h2	𝑥 < 10.0.19044.7725
microsoft	windows_10_21h2	𝑥 < 10.0.19044.7725
microsoft	windows_10_22h2	𝑥 < 10.0.19045.7725
microsoft	windows_10_22h2	𝑥 < 10.0.19045.7725
microsoft	windows_10_22h2	𝑥 < 10.0.19045.7725
microsoft	windows_server_2012	-
microsoft	windows_server_2016	𝑥 < 10.0.14393.9512
microsoft	windows_server_2019	𝑥 < 10.0.17763.9245
microsoft	windows_server_2022	𝑥 < 10.0.20348.5622

𝑥

= Vulnerable software versions

Windows Releases

Platform

Version

Windows 10

1607 (x64, x86)	KB5123099
1809 (x64, x86)	KB5122876
21H2 (arm64, x64, x86)	KB5122878
22H2 (arm64, x64, x86)	KB5122878

Windows Server 2012

Server Core	KB5123065
Standard	KB5123065

Windows Server 2012 R2

Server Core	KB5123066
Standard	KB5123066

Windows Server 2016

Server Core	KB5123099
Standard	KB5123099

Windows Server 2019

Server Core	KB5122876
Standard	KB5122876

Windows Server 2022

Server Core	KB5122882
Standard	KB5122882

Common Weakness Enumeration

CWE-122 - Heap-based Buffer Overflow
A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().

Vulnerability Media Exposure

[ENGLISH] Microsoft September 2026 Patch Tuesday fixes 966 flaws, 2 zero-days
Today is Microsoft's September 2026 Patch Tuesday, with security updates released for a record-breaking 966 flaws, including two actively exploited zero-day vulnerabilities. [...]
Published: 2026-09-08T14:18:05-04:00

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-85880

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-85880