securitytabs

CVE-2026-96951

High8.8CISA KEV — exploited in the wild

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.

CVSS
8.8v3.1
EPSS (exploit probability)
1.5%74th pct
CISA KEV
Listed

EPSS trendFIRST daily scores, last 90 days

FIRST EPSS held steady from 1.5% on 2026-10-14 to 1.5% on 2026-10-20, ranging 1.5%–1.5% across 6 daily scores.
2026-10-14 → 2026-10-20 · 6 days · 1.5%–1.5%
Daily values
FIRST EPSS daily scores for this CVE
Score dateEPSSPercentile
2026-10-201.5%74.1%
2026-10-191.5%74.1%
2026-10-181.5%74.1%
2026-10-161.5%74.0%
2026-10-151.5%74.0%
2026-10-141.5%73.8%

CISA KEV entrycatalogue 2026.10.20

Date added
2026-10-13
Federal due date
2026-10-16
Known ransomware use
Unknown

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.

Verbatim from the CISA KEV catalogue (CISA KEV, fetched 2026-10-21 07:34 UTC). The due date applies to US federal agencies under BOD 22-01.

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

Affected products

  • microsoft outlook web
  • microsoft windows 10 1607
  • microsoft windows 10 1809
  • microsoft windows 10 21h2
  • microsoft windows 10 22h2
  • microsoft windows 11 23h2
  • microsoft windows 11 24h2
  • microsoft windows 11 25h2
  • microsoft windows 11 26h1
  • microsoft windows 11 26h2
  • microsoft windows server 2012
  • microsoft windows server 2016
  • microsoft windows server 2019
  • microsoft windows server 2022
  • microsoft windows server 2025

Coverage5 articles

References

Facts sourced from NVD, FIRST EPSS, and CISA KEV. Last synced 2026-10-21 07:34 UTC.

  • CVSS & description: NVD 2.0, fetched 2026-10-21 06:34 UTC
  • EPSS: FIRST EPSS, fetched 2026-10-21 07:34 UTC; score date 2026-10-20
  • KEV: CISA KEV, fetched 2026-10-21 07:34 UTC