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fstec логотип

BDU:2026-07293

Опубликовано: 20 мая 2026
Источник: fstec
CVSS3: 6.8
CVSS2: 5.4
EPSS Низкий

Описание

Уязвимость протокола Border Gateway Protocol (BGP) операционной системы Cisco NX-OS маршрутизаторов Cisco Nexus 3000 Series Switches и Cisco Nexus 9000 Series Switches связана с ошибками обработки разрешений. Эксплуатация уязвимости может позволить нарушителю, действующему удаленно, вызвать отказ в обслуживании

Вендор

Cisco Systems Inc.

Наименование ПО

NX-OS

Версия ПО

10.2(1) (NX-OS)
10.2(1q) (NX-OS)
10.2(1) (NX-OS)
10.2(1q) (NX-OS)
10.2(2) (NX-OS)
10.2(3) (NX-OS)
10.2(2a) (NX-OS)
10.2(3t) (NX-OS)
10.2(4) (NX-OS)
10.2(5) (NX-OS)
10.2(3v) (NX-OS)
10.2(6) (NX-OS)
10.2(7) (NX-OS)
10.2(8) (NX-OS)
10.2(9) (NX-OS)
10.3(1) (NX-OS)
10.3(2) (NX-OS)
10.3(3) (NX-OS)
10.3(99w) (NX-OS)
10.3(3w) (NX-OS)
10.3(99x) (NX-OS)
10.3(3o) (NX-OS)
10.3(4a) (NX-OS)
10.3(3p) (NX-OS)
10.3(4) (NX-OS)
10.3(3q) (NX-OS)
10.3(3x) (NX-OS)
10.3(5) (NX-OS)
10.3(4g) (NX-OS)
10.3(3r) (NX-OS)
10.3(6) (NX-OS)
10.3(4h) (NX-OS)
10.3(7) (NX-OS)
10.3(8) (NX-OS)
10.4(1) (NX-OS)
10.4(2) (NX-OS)
10.4(3) (NX-OS)
10.4(4) (NX-OS)
10.4(5) (NX-OS)
10.4(4g) (NX-OS)
10.4(6) (NX-OS)
10.5(1) (NX-OS)
10.5(2) (NX-OS)
10.5(3) (NX-OS)
10.5(3t) (NX-OS)
10.5(3e) (NX-OS)
10.5(3o) (NX-OS)
10.5(3s) (NX-OS)
10.5(3p) (NX-OS)
10.6(1) (NX-OS)
10.6(1s) (NX-OS)
10.2(2) (NX-OS)
10.2(3) (NX-OS)
10.2(2a) (NX-OS)
10.2(3t) (NX-OS)
10.2(4) (NX-OS)
10.2(5) (NX-OS)
10.2(3v) (NX-OS)
10.2(6) (NX-OS)
10.2(7) (NX-OS)
10.2(8) (NX-OS)
10.2(9) (NX-OS)
10.3(1) (NX-OS)
10.3(2) (NX-OS)
10.3(3) (NX-OS)
10.3(99w) (NX-OS)
10.3(3w) (NX-OS)
10.3(99x) (NX-OS)
10.3(3o) (NX-OS)
10.3(4a) (NX-OS)
10.3(3p) (NX-OS)
10.3(4) (NX-OS)
10.3(3q) (NX-OS)
10.3(3x) (NX-OS)
10.3(5) (NX-OS)
10.3(4g) (NX-OS)
10.3(3r) (NX-OS)
10.3(6) (NX-OS)
10.3(4h) (NX-OS)
10.3(7) (NX-OS)
10.3(8) (NX-OS)
10.4(1) (NX-OS)
10.4(2) (NX-OS)
10.4(3) (NX-OS)
10.4(4) (NX-OS)
10.4(5) (NX-OS)
10.4(4g) (NX-OS)
10.4(6) (NX-OS)
10.5(1) (NX-OS)
10.5(2) (NX-OS)
10.5(3) (NX-OS)
10.5(3t) (NX-OS)
10.5(3e) (NX-OS)
10.5(3o) (NX-OS)
10.5(3s) (NX-OS)
10.5(3p) (NX-OS)
10.6(1) (NX-OS)
10.6(1s) (NX-OS)

Тип ПО

Операционная система

Операционные системы и аппаратные платформы

Cisco Systems Inc. NX-OS 10.2(1)
Cisco Systems Inc. NX-OS 10.2(1q)
Cisco Systems Inc. NX-OS 10.2(1)
Cisco Systems Inc. NX-OS 10.2(1q)
Cisco Systems Inc. NX-OS 10.2(2)
Cisco Systems Inc. NX-OS 10.2(3)
Cisco Systems Inc. NX-OS 10.2(2a)
Cisco Systems Inc. NX-OS 10.2(3t)
Cisco Systems Inc. NX-OS 10.2(4)
Cisco Systems Inc. NX-OS 10.2(5)
Cisco Systems Inc. NX-OS 10.2(3v)
Cisco Systems Inc. NX-OS 10.2(6)
Cisco Systems Inc. NX-OS 10.2(7)
Cisco Systems Inc. NX-OS 10.2(8)
Cisco Systems Inc. NX-OS 10.2(9)
Cisco Systems Inc. NX-OS 10.3(1)
Cisco Systems Inc. NX-OS 10.3(2)
Cisco Systems Inc. NX-OS 10.3(3)
Cisco Systems Inc. NX-OS 10.3(99w)
Cisco Systems Inc. NX-OS 10.3(3w)
Cisco Systems Inc. NX-OS 10.3(99x)
Cisco Systems Inc. NX-OS 10.3(3o)
Cisco Systems Inc. NX-OS 10.3(4a)
Cisco Systems Inc. NX-OS 10.3(3p)
Cisco Systems Inc. NX-OS 10.3(4)
Cisco Systems Inc. NX-OS 10.3(3q)
Cisco Systems Inc. NX-OS 10.3(3x)
Cisco Systems Inc. NX-OS 10.3(5)
Cisco Systems Inc. NX-OS 10.3(4g)
Cisco Systems Inc. NX-OS 10.3(3r)
Cisco Systems Inc. NX-OS 10.3(6)
Cisco Systems Inc. NX-OS 10.3(4h)
Cisco Systems Inc. NX-OS 10.3(7)
Cisco Systems Inc. NX-OS 10.3(8)
Cisco Systems Inc. NX-OS 10.4(1)
Cisco Systems Inc. NX-OS 10.4(2)
Cisco Systems Inc. NX-OS 10.4(3)
Cisco Systems Inc. NX-OS 10.4(4)
Cisco Systems Inc. NX-OS 10.4(5)
Cisco Systems Inc. NX-OS 10.4(4g)
Cisco Systems Inc. NX-OS 10.4(6)
Cisco Systems Inc. NX-OS 10.5(1)
Cisco Systems Inc. NX-OS 10.5(2)
Cisco Systems Inc. NX-OS 10.5(3)
Cisco Systems Inc. NX-OS 10.5(3t)
Cisco Systems Inc. NX-OS 10.5(3e)
Cisco Systems Inc. NX-OS 10.5(3o)
Cisco Systems Inc. NX-OS 10.5(3s)
Cisco Systems Inc. NX-OS 10.5(3p)
Cisco Systems Inc. NX-OS 10.6(1)
Cisco Systems Inc. NX-OS 10.6(1s)
Cisco Systems Inc. NX-OS 10.2(2)
Cisco Systems Inc. NX-OS 10.2(3)
Cisco Systems Inc. NX-OS 10.2(2a)
Cisco Systems Inc. NX-OS 10.2(3t)
Cisco Systems Inc. NX-OS 10.2(4)
Cisco Systems Inc. NX-OS 10.2(5)
Cisco Systems Inc. NX-OS 10.2(3v)
Cisco Systems Inc. NX-OS 10.2(6)
Cisco Systems Inc. NX-OS 10.2(7)
Cisco Systems Inc. NX-OS 10.2(8)
Cisco Systems Inc. NX-OS 10.2(9)
Cisco Systems Inc. NX-OS 10.3(1)
Cisco Systems Inc. NX-OS 10.3(2)
Cisco Systems Inc. NX-OS 10.3(3)
Cisco Systems Inc. NX-OS 10.3(99w)
Cisco Systems Inc. NX-OS 10.3(3w)
Cisco Systems Inc. NX-OS 10.3(99x)
Cisco Systems Inc. NX-OS 10.3(3o)
Cisco Systems Inc. NX-OS 10.3(4a)
Cisco Systems Inc. NX-OS 10.3(3p)
Cisco Systems Inc. NX-OS 10.3(4)
Cisco Systems Inc. NX-OS 10.3(3q)
Cisco Systems Inc. NX-OS 10.3(3x)
Cisco Systems Inc. NX-OS 10.3(5)
Cisco Systems Inc. NX-OS 10.3(4g)
Cisco Systems Inc. NX-OS 10.3(3r)
Cisco Systems Inc. NX-OS 10.3(6)
Cisco Systems Inc. NX-OS 10.3(4h)
Cisco Systems Inc. NX-OS 10.3(7)
Cisco Systems Inc. NX-OS 10.3(8)
Cisco Systems Inc. NX-OS 10.4(1)
Cisco Systems Inc. NX-OS 10.4(2)
Cisco Systems Inc. NX-OS 10.4(3)
Cisco Systems Inc. NX-OS 10.4(4)
Cisco Systems Inc. NX-OS 10.4(5)
Cisco Systems Inc. NX-OS 10.4(4g)
Cisco Systems Inc. NX-OS 10.4(6)
Cisco Systems Inc. NX-OS 10.5(1)
Cisco Systems Inc. NX-OS 10.5(2)
Cisco Systems Inc. NX-OS 10.5(3)
Cisco Systems Inc. NX-OS 10.5(3t)
Cisco Systems Inc. NX-OS 10.5(3e)
Cisco Systems Inc. NX-OS 10.5(3o)
Cisco Systems Inc. NX-OS 10.5(3s)
Cisco Systems Inc. NX-OS 10.5(3p)
Cisco Systems Inc. NX-OS 10.6(1)
Cisco Systems Inc. NX-OS 10.6(1s)

Уровень опасности уязвимости

Средний уровень опасности (базовая оценка CVSS 2.0 составляет 5,4)
Средний уровень опасности (базовая оценка CVSS 3.1 составляет 6,8)

Возможные меры по устранению уязвимости

Использование рекомендаций производителя:
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-bgp-iefab-3hb2pwtx

Статус уязвимости

Подтверждена производителем

Наличие эксплойта

Данные уточняются

Информация об устранении

Уязвимость устранена

Ссылки на источники

Идентификаторы других систем описаний уязвимостей

EPSS

Процентиль: 38%
0.00467
Низкий

6.8 Medium

CVSS3

5.4 Medium

CVSS2

Связанные уязвимости

nvd логотип

CVE-2026-20171

CVSS3: 6.8
nvd
3 месяца назад

A vulnerability in the Border Gateway Protocol (BGP) enforce-first-as feature of Cisco Nexus 3000 Series Switches and Cisco Nexus 9000 Series Switches in standalone NX-OS mode could allow an unauthenticated, remote attacker to trigger BGP peer flaps, resulting in a denial of service (DoS) condition. This vulnerability is due to incorrect parsing of a transitive BGP attribute. An attacker could exploit this vulnerability by sending a crafted BGP update through an established BGP peer session. If the update propagates to an affected device, it could cause the device to drop the BGP session and flap with the BGP peer that is forwarding this update, resulting in a DoS condition.

github логотип

GHSA-h75f-8f3x-9m8c

CVSS3: 6.8
github
3 месяца назад

A vulnerability in the Border Gateway Protocol (BGP) enforce-first-as feature of Cisco Nexus 3000 Series Switches and Cisco Nexus 9000 Series Switches in standalone NX-OS mode could allow an unauthenticated, remote attacker to trigger BGP peer flaps, resulting in a denial of service (DoS) condition. This vulnerability is due to incorrect parsing of a transitive BGP attribute. An attacker could exploit this vulnerability by sending a crafted BGP update through an established BGP peer session. If the update propagates to an affected device, it could cause the device to drop the BGP session and flap with the BGP peer that is forwarding this update, resulting in a DoS condition.

EPSS

Процентиль: 38%
0.00467
Низкий

6.8 Medium

CVSS3

5.4 Medium

CVSS2