CVE-2021-31955
Microsoft Windows Kernel Information Disclosure Vulnerability
CVSS
—
Sin CVSS
EPSS
81.1%
p100
KEV
SÍ
3 nov 2021
Exploit Today
80
0-100
Publicado: — · Última mod.: —
81.1%EPSS · 30 días81.1%
2026-08-022026-08-31
Producto
Microsoft / Windows
Vulnerabilidad
Microsoft Windows Kernel Information Disclosure Vulnerability
Añadido a KEV
3 nov 2021
Remediar antes de
17 nov 2021
Uso conocido en ransomware
No
Descripción resumida
Microsoft Windows Kernel contains an unspecified vulnerability that allows for information disclosure. Successful exploitation allows attackers to read the contents of kernel memory from a user-mode process.
Acción requerida
Apply updates per vendor instructions.
Notas
https://nvd.nist.gov/vuln/detail/CVE-2021-31955
CVECVSSEPSSKEVRExplotTítuloVis.
CVE-2026-322024.3 MED99.2%
KEV—80Microsoft Windows Protection Mechanism Failure Vulnerability17dCVE-2026-208055.5 MED91.8%
KEV—78Microsoft Windows Information Disclosure Vulnerability32dCVE-2025-266337.0 ALT98.1%
KEV—79Microsoft Windows Management Console (MMC) Improper Neutralization Vulnerability26dCVE-2024-490398.8 ALT96.3%
KEV—79Microsoft Windows Task Scheduler Privilege Escalation Vulnerability27dCVE-2024-434618.8 ALT98.9%
KEV—80Microsoft Windows MSHTML Platform Spoofing Vulnerability21dCVE-2024-382175.4 MED95.3%
KEV—79Microsoft Windows Mark of the Web (MOTW) Protection Mechanism Failure Vulnerability21d