CVE-2026-21510
Microsoft Windows Shell Protection Mechanism Failure Vulnerability
CVSS
—
Sin CVSS
EPSS
24.5%
p98
KEV
SÍ
10 feb 2026
Exploit Today
79
0-100
Publicado: — · Última mod.: —
Producto
Microsoft / Windows
Vulnerabilidad
Microsoft Windows Shell Protection Mechanism Failure Vulnerability
Añadido a KEV
10 feb 2026
Remediar antes de
3 mar 2026
Uso conocido en ransomware
No
Descripción resumida
Microsoft Windows Shell contains a protection mechanism failure vulnerability that could allow an unauthorized attacker to bypass a security feature over a network.
Acción requerida
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Notas
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-21510 ; https://nvd.nist.gov/vuln/detail/CVE-2026-21510