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CVE Watch—

CVE-2020-3566

Cisco IOS XR Software DVMRP Memory Exhaustion Vulnerability

CVSS

—

Sin CVSS

EPSS

3.7%

p89

KEV

SÍ

3 nov 2021

Exploit Today

77

0-100

Publicado: — · Última mod.: —

EPSS · 30d

3.6%EPSS · 30 días3.7%

2026-08-022026-08-31

Ficha del catálogo KEV

Producto

Cisco / IOS XR

Vulnerabilidad

Cisco IOS XR Software DVMRP Memory Exhaustion Vulnerability

Añadido a KEV

3 nov 2021

Remediar antes de

3 may 2022

Uso conocido en ransomware

No

Descripción resumida

Cisco IOS XR Distance Vector Multicast Routing Protocol (DVMRP) incorrectly handles Internet Group Management Protocol (IGMP) packets. Exploitation could allow an unauthenticated, remote attacker to immediately crash the IGMP process or make it consume available memory and eventually crash.

Acción requerida

Apply updates per vendor instructions.

Notas

https://nvd.nist.gov/vuln/detail/CVE-2020-3566

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