CVE-2026-96951

Published: Oct 13, 2026Modified: Oct 16, 2026CISA KEV

8.8

Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Exploitability: 2.8 / Impact: 5.9

Source: secure@microsoft.com (Secondary)

Description

Improper neutralization of special elements used in a command ('command injection') in Windows Shell allows an unauthorized attacker to bypass a security feature over a network.

Affected (26)

Products: Microsoft: Outlook Web, Windows 10 1607, Windows 10 1809, Windows 10 21h2, Windows 10 22h2, Windows 11 23h2, Windows 11 24h2, Windows 11 25h2, Windows 11 26h1, Windows 11 26h2, Windows Server 2012, Windows Server 2016, Windows Server 2019, Windows Server 2022, Windows Server 2025

15 products

Configuration A

26 vulnerable

Vulnerable Software	Affected Versions
Microsoft Outlook Web	All versions
Microsoft Windows 10 1607	version < 10.0.14393.9612
Microsoft Windows 10 1607	version < 10.0.14393.9612
Microsoft Windows 10 1809	version < 10.0.17763.9376
Microsoft Windows 10 1809	version < 10.0.17763.9376
Microsoft Windows 10 21h2	version < 10.0.19044.7807
Microsoft Windows 10 21h2	version < 10.0.19044.7807
Microsoft Windows 10 21h2	version < 10.0.19044.7807
Microsoft Windows 10 22h2	version < 10.0.19045.7807
Microsoft Windows 10 22h2	version < 10.0.19045.7807
Microsoft Windows 10 22h2	version < 10.0.19045.7807
Microsoft Windows 11 23h2	version < 10.0.22631.7652
Microsoft Windows 11 23h2	version < 10.0.22631.7652
Microsoft Windows 11 24h2	version < 10.0.26100.9711
Microsoft Windows 11 24h2	version < 10.0.26100.9711
Microsoft Windows 11 25h2	version < 10.0.26200.9711
Microsoft Windows 11 25h2	version < 10.0.26200.9711
Microsoft Windows 11 26h1	version < 10.0.28000.3231
Microsoft Windows 11 26h1	version < 10.0.28000.3231
Microsoft Windows 11 26h2	version < 10.0.26300.9711
Microsoft Windows 11 26h2	version < 10.0.26300.9711
Microsoft Windows Server 2012	Version r2
Microsoft Windows Server 2016	version < 10.0.14393.9612
Microsoft Windows Server 2019	version < 10.0.17763.9376
Microsoft Windows Server 2022	version < 10.0.20348.5761
Microsoft Windows Server 2025	version < 10.0.26100.33650

Related CWEs

CWE-77

Improper Neutralization of Special Elements used in a Command ('Command Injection')

The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component.

References (2)

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-96951

Source: secure@microsoft.com

PatchVendor Advisory

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-96951

Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0

US Government Resource

Timeline

No history available yet.