CISA KEV entry
CVE-2026-96951Microsoft Windows Command Injection Vulnerability
Microsoft Windows. Added to the CISA Known Exploited Vulnerabilities catalogue on 13 October 2026.
Data status: a source is stale
Last synced CISA catalogue version 2026.11.04 (released 4 November 2026) 1,768 entries Updated manually
- Date added
- 2026-10-13
- Federal due date
- 2026-10-16 3 days after it was added; passed at the sync of 2026-11-05
- Known ransomware use
- Unknown
- Forensic triage (BOD 26-04)
- Yes
- CVSS
- 8.8 High CVSS 3.1, scored by secure@microsoft.com
- EPSS
- 9.81% percentile 95.5, scored 2026-11-04
- CISA SSVC
- Exploitation active, automatable no, technical impact total
- NVD status
- Analyzed published 2026-10-13
BOD 26-04 remediation window
With CISA's SSVC answers for this CVE (automatable: no, technical impact: total), BOD 26-04 Table 1 gives 3 days and forensic triage on a publicly exposed asset (row 3) and 14 days on an asset that is not publicly exposed (row 11) S06. CISA set the catalogue due date at 3 days; under BOD 26-04 it reflects CISA's own view of whether the flaw sits on publicly exposed assets S07. The directive binds US federal civilian executive branch agencies only.
What CISA says
Short 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.
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
CWE in the catalogue
CWE-77
Official links
- CISA KEV catalogue entry cisa.gov
- NVD record nvd.nist.gov
Vendor advisory and patch links
References NVD tags Vendor Advisory or Patch, exactly as NVD lists them.
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-96951 Patch, Vendor Advisory
Links in CISA's notes
NVD details
- CWE (NVD)
- CWE-77 by secure@microsoft.com
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H- CVSS versions in NVD
- V31
- Last modified in NVD
- 2026-10-29T16:20:22.137
Where each value comes from
| Field | Source | Fetched, UTC | State |
|---|---|---|---|
| Catalogue fields | CISA KEV JSON, version 2026.11.04 | 2026-11-05 11:38 | current |
| NVD published, status, CVSS, CWE, vendor links | NVD CVE API 2.0; CVSS: NVD (secure@microsoft.com) | 2026-11-03 12:37 | current at 2026-11-05 11:38 |
| EPSS | FIRST EPSS API, scores of 2026-11-04 | 2026-11-05 11:38 | current |
| CISA SSVC | CISA ADP (via NVD), record of 2026-10-08 | 2026-11-03 12:37 | current |
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