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Activamente explotadaCVSS 4.0 · MEDIUM

CVE-2026-45498

Microsoft Defender contains an unspecified vulnerability that allows for denial of service.

Ver en NVD

Análisis

Microsoft Defender is currently being targeted by active exploits in the wild that allow for a Denial of Service. While the severity score is moderate, its presence on the CISA KEV catalog makes it a priority for anyone managing Windows-based development environments or production servers.

Roles relevantes

WindowsCyberSecurityCloud

Severidad

Puntaje: 4.0(MEDIUM)
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
AV: LOCAL
AC: LOW
PR: NONE
UI: NONE
S: UNCHANGED
C: NONE
I: NONE
A: LOW
Tipo de falla (CWE): CWE-400NVD-CWE-noinfo

CISA KEV

Agregada al KEV: 2026-05-20
Fecha límite federal: 2026-06-03
Uso conocido en ransomware: Unknown
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.

EPSS

Probabilidad de explotación (próx. 30 días): 0.0411 (4.1%)
Percentil: 88.7%
EPSS: 2026-05-26

Afecta

microsoft:defender_antimalware_platform

Descripción técnica

Microsoft Defender Denial of Service Vulnerability

Publicada: 20/5/2026, 13:16:36
Última modificación: 26/5/2026, 17:16:47

Referencias

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