CVE-2026-96951
8.8 · HIGHActively ExploitedImproper 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.
Overview
CVE-2026-96951 is a high-severity vulnerability affecting microsoft outlook_web. It was published on October 13, 2026 and has a CVSS 3.1 base score of 8.8 (HIGH). This vulnerability is listed in CISA's Known Exploited Vulnerabilities catalog, indicating active exploitation in the wild.
This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical 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.
Remediation
Check the references section for vendor advisories and patches from microsoft. Update outlook_web to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| microsoft | windows_10_1607 | >= 0, < 10.0.14393.9612 | Affected |
| microsoft | windows_10_1809 | >= 0, < 10.0.17763.9376 | Affected |
| microsoft | windows_10_21h2 | >= 0, < 10.0.19044.7807 | Affected |
| microsoft | windows_10_22h2 | >= 0, < 10.0.19045.7807 | Affected |
| microsoft | windows_11_23h2 | >= 0, < 10.0.22631.7652 | Affected |
| microsoft | windows_11_24h2 | >= 0, < 10.0.26100.9711 | Affected |
| microsoft | windows_11_25h2 | >= 0, < 10.0.26200.9711 | Affected |
| microsoft | windows_11_26h1 | >= 0, < 10.0.28000.3231 | Affected |
| microsoft | windows_11_26h2 | >= 0, < 10.0.26300.9711 | Affected |
| microsoft | windows_server_2016 | >= 0, < 10.0.14393.9612 | Affected |
| microsoft | windows_server_2019 | >= 0, < 10.0.17763.9376 | Affected |
| microsoft | windows_server_2022 | >= 0, < 10.0.20348.5761 | Affected |
| microsoft | windows_server_2025 | >= 0, < 10.0.26100.33650 | Affected |
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Frequently asked questions
What is CVE-2026-96951?
CVE-2026-96951 is a high-severity vulnerability affecting microsoft outlook_web. It was published on October 13, 2026 and has a CVSS 3.1 base score of 8.8 (HIGH). This vulnerability is listed in CISA's Known Exploited Vulnerabilities catalog, indicating active exploitation in the wild.
How severe is CVE-2026-96951?
This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2026-96951?
Check the references section for vendor advisories and patches from microsoft. Update outlook_web to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2026-96951?
CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-96951 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.
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