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CVE-2025-20311

Опубликовано: 24 сент. 2025
Источник: nvd
CVSS3: 7.4
EPSS Низкий

Описание

A vulnerability in the handling of certain Ethernet frames in Cisco IOS XE Software for Catalyst 9000 Series Switches could allow an unauthenticated, adjacent attacker to cause an egress port to become blocked and drop all outbound traffic.

This vulnerability is due to improper handling of crafted Ethernet frames. An attacker could exploit this vulnerability by sending crafted Ethernet frames through an affected switch. A successful exploit could allow the attacker to cause the egress port to which the crafted frame is forwarded to start dropping all frames, resulting in a denial of service (DoS) condition.

EPSS

Процентиль: 17%
0.00055
Низкий

7.4 High

CVSS3

Дефекты

CWE-19

Связанные уязвимости

CVSS3: 7.4
github
5 месяцев назад

A vulnerability in the handling of certain Ethernet frames in Cisco IOS XE Software for Catalyst 9000 Series Switches could allow an unauthenticated, adjacent attacker to cause an egress port to become blocked and drop all outbound traffic. This vulnerability is due to improper handling of crafted Ethernet frames. An attacker could exploit this vulnerability by sending crafted Ethernet frames through an affected switch. A successful exploit could allow the attacker to cause the egress port to which the crafted frame is forwarded to start dropping all frames, resulting in a denial of service (DoS) condition.

CVSS3: 7.4
fstec
5 месяцев назад

Уязвимость операционных систем Cisco IOS XE сетевого устройства Catalyst 9000, связанная с ошибками в коде, позволяющая нарушителю вызвать отказ в обслуживании

EPSS

Процентиль: 17%
0.00055
Низкий

7.4 High

CVSS3

Дефекты

CWE-19