1. Home
  2. Vulnerabilities
  3. CVE-2026-96951
Known Exploited Vulnerability
8.8
HIGH CVSS 3.1
CVE-2026-96951
Microsoft Windows Command Injection Vulnerability - [Actively Exploited]
Overview
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.

Details
INFO

Published Date :

Oct. 13, 2026, 7:22 p.m.

Last Modified :

Oct. 14, 2026, 4:19 a.m.

Remotely Exploit :

Yes !

Source :

[email protected]
CISA Notification
CISA KEV (Known Exploited Vulnerabilities)

For the benefit of the cybersecurity community and network defenders—and to help every organization better manage vulnerabilities and keep pace with threat activity—CISA maintains the authoritative source of vulnerabilities that have been exploited in the wild.

Description :

Microsoft Windows Shell contains a command injection vulnerability that allows an unauthorized attacker to bypass a security feature over a network.

Required Action :

Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.

Known Ransomware Campaign Use:

Unknown

Notes :

https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2026-96951 ; BOD 26-04: BOD 26-04: Prioritizing Security Updates Based on Risk | CISA ; Forensics Triage Requirements: BOD 26-04: Implementation Guidance for Prioritizing Security Updates Based on Risk | CISA ; https://nvd.nist.gov/vuln/detail/CVE-2026-96951

Impact
Affected Products

The following products are affected by CVE-2026-96951 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Microsoft windows_10
2 Microsoft windows_server_2012
3 Microsoft windows_server_2016
4 Microsoft windows_server_2019
5 Microsoft windows_10_1607
6 Microsoft windows_10_1809
7 Microsoft windows_10_21h2
8 Microsoft windows_server_2022
9 Microsoft windows_11
10 Microsoft windows_11_23h2
11 Microsoft outlook.com
12 Microsoft windows_server_2012_r2
13 Microsoft windows_11_24h2
14 Microsoft windows_server_2025
15 Microsoft windows_11_25h2
16 Microsoft windows_11_26h1
17 Microsoft windows_11_version_26h2_for_arm64-based_systems
: Total Affected Vendor : 1 | Products : 17
Scoring
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 134c704f-9b21-4f2e-91b3-4a467353bcc0
CVSS 3.1 HIGH [email protected]
Solution
Update Windows Shell to patch command injection vulnerabilities and enhance security.
  • Apply the latest Windows security updates.
  • Limit shell access and permissions.
  • Sanitize all user inputs to commands.
References
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2026-96951.

URL Resource
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-96951
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-96951
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-96951 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-96951 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2026-96951 vulnerability anywhere in the article.

  • TheCyberThrone
Microsoft Patch Tuesday – October 2026

1,411 Vulnerabilities and Three Zero-DaysStudy SecurityAn actively exploited Windows Shell flaw, publicly disclosed vulnerabilities and a record-breaking  security release put enterprise patch managem ... Read more

Published Date: Oct 14, 2026 (4 hours, 42 minutes ago)
  • Dark Reading
Zero-Days Lurk in Microsoft's Overgrown October Patch Tuesday

Source: China Photos via Getty ImagesAs we progress further into the AI-driven "vulnpocalypse era," Microsoft’s October 2026 Patch Tuesday security update blows past last month’s record for the number ... Read more

Published Date: Oct 13, 2026 (7 hours, 8 minutes ago)

Results are limited to the first 20 news articles due to potential performance issues.

The following table lists the changes that have been made to the CVE-2026-96951 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0

    Oct. 14, 2026

    Action Type Old Value New Value
    Removed SSVC {'id': 'CVE-2026-96951', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'active'}, {'automatable': 'no'}, {'technicalImpact': 'total'}], 'version': '2.0.3', 'timestamp': '2026-10-13T19:40:04.830018Z'}
    Added SSVC {'id': 'CVE-2026-96951', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'total'}], 'version': '2.0.3', 'timestamp': '2026-10-08T00:00:00+00:00'}
  • CVE CISA KEV Update by 9119a7d8-5eab-497f-8521-727c672e3725

    Oct. 13, 2026

    Action Type Old Value New Value
    Added Date Added 2026-10-13
    Added Due Date 2026-10-13
    Added Required Action 2026-10-13
    Added Vulnerability Name 2026-10-13
  • CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0

    Oct. 13, 2026

    Action Type Old Value New Value
    Added Reference https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-96951
    Added SSVC {'id': 'CVE-2026-96951', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'active'}, {'automatable': 'no'}, {'technicalImpact': 'total'}], 'version': '2.0.3', 'timestamp': '2026-10-13T19:40:04.830018Z'}
  • New CVE Received by [email protected]

    Oct. 13, 2026

    Action Type Old Value New Value
    Added 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.
    Added CVSS V3.1 AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
    Added CWE CWE-77
    Added Affected New affected value received. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/96xxx/CVE-2026-96951.json">CVE-2026-96951</a>
    Added Reference https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-96951
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CVSS
Vulnerability Scoring Details
Base CVSS Score: 8.8
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact