CVE Watch—

CVE-2026-21510

Microsoft Windows Shell Protection Mechanism Failure Vulnerability

CVSS

—

Sem CVSS

EPSS

61.2%

p99

KEV

SIM

10 de fev. de 2026

Exploit Today

0-100

Publicado: — · Última mod.: —

EPSS · 30d

24.5%EPSS · 30 dias61.2%

2026-10-082026-11-05

Ficha do catálogo KEV

Produto

Microsoft / Windows

Vulnerabilidade

Microsoft Windows Shell Protection Mechanism Failure Vulnerability

Adicionado ao KEV

10 de fev. de 2026

Corrigir até

3 de mar. de 2026

Uso conhecido em ransomware

Não

Descrição resumida

Microsoft Windows Shell contains a protection mechanism failure vulnerability that could allow an unauthorized attacker to bypass a security feature over a network.

Ação necessária

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

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