CVE-2026-96951: listed in the CISA KEV catalog

CVE-2026-96951 · CVSS 8.8 HIGH · KEV 2026-10-13 · patch available

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.

Is CVE-2026-96951 exploited?

• Listed in the CISA KEV catalog on 2026-10-13.
• Federal remediation due 2026-10-16.
• Public exploit code: none found in monitored sources.

Which products and versions are affected?

• Microsoft · Skype · for Business Server 2015 CU13
• Microsoft · Office · LTSC for Mac 2024
• Microsoft · Office · LTSC for Mac 2021
• Microsoft · Skype · for Business Server Subscription Edition CU1
• Microsoft · Skype · for Business Server 2019 CU8
• Microsoft · SharePoint · Enterprise Server 2016
• Microsoft · Windows 10 Version 1607 · >= 10.0.14393.0, < 10.0.14393.9612
• Microsoft · Windows 10 Version 1809 · >= 10.0.17763.0, < 10.0.17763.9376
• Microsoft · Windows 10 Version 21H2 · >= 10.0.19044.0, < 10.0.19044.7807
• Microsoft · Windows 10 Version 22H2 · >= 10.0.19045.0, < 10.0.19044.7807
• Microsoft · Windows 11 version 23H2 · >= 10.0.22631.0, < 10.0.22631.7652
• Microsoft · Windows 11 Version 24H2 · >= 10.0.26100.0, < 10.0.26100.9711
• Microsoft · Windows 11 Version 25H2 · >= 10.0.26200.0, < 10.0.26200.9711
• Microsoft · Windows 11 version 26H1 · >= 10.0.28000.0, < 10.0.28000.3231
• Microsoft · Windows 11 Version 26H2 · >= 10.0.26300.0, < 10.0.26300.9711
• Microsoft · Windows Server 2012 R2 · >= 6.3.9600.0, < 6.3.9600.23470
• Microsoft · Windows Server 2012 R2 (Server Core installation) · >= 6.3.9600.0, < 6.3.9600.23470
• Microsoft · Windows Server 2016 · >= 10.0.14393.0, < 10.0.14393.9612
• Microsoft · Windows Server 2016 (Server Core installation) · >= 10.0.14393.0, < 10.0.14393.9612
• Microsoft · Windows Server 2019 · >= 10.0.17763.0, < 10.0.17763.9376
• Microsoft · Windows 10 Version 1607 for 32-bit Systems · < 10.0.14393.9612
• Microsoft · Windows 10 Version 1607 for x64-based Systems · < 10.0.14393.9612
• Microsoft · Windows 10 Version 1809 for 32-bit Systems · < 10.0.17763.9376
• Microsoft · Windows 10 Version 1809 for x64-based Systems · < 10.0.17763.9376
• Microsoft · Windows 10 Version 21H2 for 32-bit Systems · < 10.0.19044.7807
• Microsoft · Windows 10 Version 21H2 for ARM64-based Systems · < 10.0.19044.7807
• Microsoft · Windows 10 Version 21H2 for x64-based Systems · < 10.0.19044.7807
• Microsoft · Windows Server 2022 · < 10.0.20348.5761
• Microsoft · Windows Server 2022 (Server Core installation) · < 10.0.20348.5761
• Microsoft · Windows 11 Version 23H2 for ARM64-based Systems · < 10.0.22631.7652
• Microsoft · Windows 11 Version 23H2 for x64-based Systems · < 10.0.22631.7652
• Microsoft · Windows 11 Version 24H2 for ARM64-based Systems · < 10.0.26100.9711
• Microsoft · Windows 11 Version 24H2 for x64-based Systems · < 10.0.26100.9711
• Microsoft · Windows Server 2025 · < 10.0.26100.33650
• Microsoft · Windows Server 2025 (Server Core installation) · < 10.0.26100.33650
• Microsoft · Windows 11 Version 26H1 for ARM64-based Systems · < 10.0.28000.3231

Is there a patch?

• KB5126836
• KB5126868
• KB5126651
• KB5126657
• KB5126655
• KB5126653
• KB5127648
• KB5126646
• KB5127646
• Release Notes

What PlainSec published about CVE-2026-96951

• Microsoft Patch Tuesday flags exploited Shell zero-day (2026-10-14)

Primary sources

• NVD record
• CISA KEV catalog
• Microsoft KB5126836
• Microsoft KB5126868
• Microsoft KB5126651
• Microsoft KB5126657
• Microsoft KB5126655
• Microsoft KB5126653
• Microsoft KB5127648
• Microsoft KB5126646

What this record does not say

• No EPSS score.

KEV and EPSS are re-checked daily. Record last updated 2026-10-14.