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CVE-2026-96951Vulnerability

Microsoft Windows Command Injection Vulnerability

Exploited in the wildCISA added it to its Known Exploited Vulnerabilities list on .

Reported by 22 independent sources · first reported by CISA advisories · last reported

Last reported 5 days ago

CISA KEVAdded 13 Oct 2026
Fix due 16 Oct 2026
Used by ransomware: not knownCISA KEV catalogue
EPSS1.5%
higher than 74% of CVEsFIRST EPSS, as of 23 Oct 2026

What the reports say

26 reports · the newest 20, newest first · the exact sentence from each
  1. “Among them is CVE-2026-96951, an actively exploited Windows Shell vulnerability that allows attackers to bypass security protections.”

    Check Point ResearchVendor
    19th October – Threat Intelligence Report
  2. “…-2026-78401, CVE-2026-78406, CVE-2026-16916, CVE-2026-16823, CVE-2026-19491 (IBM Verify Identity Access and Security Verify Access), CVE-2026-96951, CVE-2026-108398, CVE-2026-92707, CVE-2026-70242, CVE-2026-102866, CVE-2026-105016, CVE-2026-65674, CVE-2026-83498 (Microsoft Window…”

    The Hacker NewsNews
    ⚡ Weekly Recap: 98 Zero-Days, Rogue AI Agents, $100M Crypto Theft, 700 Supermarkets Hit and More
  3. “CVE-2026-96951”

    CERT-FRGovernment
    Bulletin d'actualité CERTFR-2026-ACT-044 (19 octobre 2026)
  4. “Microsoft fixes exploited Mark of the Web bypass vulnerability (CVE-2026-96951)”

    Help Net SecurityNews
    Week in review: Hidden implant in Ledger wallets linked to $93M theft, 1,500+ npm packages exposed
  5. “Cybersecurity and Infrastructure Security Agency (CISA) added a Microsoft Windows Shell flaw, tracked as CVE-2026-96951 (CVSS score of 8.8), to its Known Exploited Vulnerabilities (KEV) catalog.”

    Security AffairsNews
    U.S. CISA adds Microsoft Windows Shell flaw to its Known Exploited Vulnerabilities catalog
  6. “Microsoft disclosed one actively exploited zero-day affecting Windows Shell — CVE-2026-96951 — that allows unauthorized attackers to bypass a security feature.”

    CyberScoopNews
    Microsoft drops an actively exploited zero-day among record high of 1,413 vulnerabilities
  7. “The single zero-day under active attack this month is CVE-2026-96951, a Windows Shell security feature bypass used to dodge Mark of the Web protections.”

    Security AffairsNews
    Microsoft Patch Tuesday Sets New Record with 1,415 CVEs in October 2026 Updates
  8. “CVE-2026-96951, an actively exploited Mark of the Web bypass in Windows Shell, should be the first patch deployed across Windows fleets.”

    SOCRadarVendor
    October 2026 Patch Tuesday: 1,413 Flaws, 3 Zero-Days
  9. “We’ll start with the actively exploited vulnerability tracked as CVE-2026-96951 (CVSS score 8.8 out of 10), a Windows Shell security feature bypass vulnerability.”

    Malwarebytes LabsVendor
    Update Windows: Record Patch Tuesday fixes flaw already under attack
  10. “The former is CVE-2026-96951, a Windows Shell security feature bypass vulnerability which could lead to malware exposure, data compromise, system integrity violations and operational disruption.”

    Infosecurity MagazineNews
    Microsoft Breaks Patch Tuesday Record Again with 1400+ CVEs
  11. “Microsoft ha confirmado la explotación activa de CVE-2026-96951, una vulnerabilidad de severidad alta que permite eludir una función de seguridad de Windows Shell.”

    INCIBE-CERTGovernment
    Boletín mensual de seguridad de Microsoft de octubre de 2026
  12. “Microsoft fixes exploited Mark of the Web bypass vulnerability (CVE-2026-96951)”

    Help Net SecurityNews
    Microsoft fixes exploited Mark of the Web bypass vulnerability (CVE-2026-96951)
  13. “The exploited zero-day is tracked as CVE-2026-96951 (CVSS score 8.8/10).”

    SecurityWeekNews
    Microsoft Patches Record 1,413 Vulnerabilities, Including Exploited Windows Zero-Day
  14. “CVE-2026-96951 (CVSS score: 8.8) - A command injection vulnerability in Windows Shell that allows an unauthorized attacker to bypass a security feature over a network.”

    The Hacker NewsNews
    Microsoft Patches Record 1,413 Flaws, Including Exploited Windows Shell Bug
  15. “The zero-day is CVE-2026-96951, a Windows Shell security feature bypass used to evade Mark of the Web (MOTW) defenses.”

    Risky Business NewsNews
    Risky Bulletin: Spyware chip found in Ledger crypto-wallets
  16. “CVE-2026-96951”

    JPCERT/CC alertsGovernment
    Security Alert: Microsoft Releases October 2026 Security Updates
  17. “Bulletin de sécurité Microsoft Office CVE-2026-96951 du 13 octobre 2026”

    CERT-FRGovernment
    Multiples vulnérabilités dans Microsoft Office (14 octobre 2026)
  18. “CVE-2026-96951 is a security feature bypass in the Windows Shell that affects Windows 10 and 11 systems, as well as some Server versions.”

    Krebs on SecurityNews
    Microsoft Patches More Than 1,400 Security Flaws
  19. “Today’s specimen is CVE-2026-96951.”

    Rapid7Vendor
    Patch Tuesday - October 2026
  20. “CVE-2026-96951: Windows Shell Security Feature Bypass Vulnerability”

    Qualys Threat ResearchVendor
    Microsoft Patch Tuesday, October 2026 Security Update Review

Indicators reported together

named in the same reports

Also named with it: CVE-2026-108398, CVE-2026-92707, CVE-2026-104935, CVE-2026-70242, CVE-2026-97229, CVE-2026-102866, CVE-2026-70291, CVE-2026-88156, CVE-2026-97016, CVE-2026-97749, CVE-2026-105016, CVE-2026-102764, CVE-2026-88178, CVE-2026-70147, CVE-2026-70153, CVE-2026-100219, CVE-2026-65674, CVE-2026-96934, CVE-2026-100202, CVE-2026-97814

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