Критический

Опубликована

CVE-2026-76455

Cisco NX-OS Software Security Hardening Release: October 2026 - Improper Access Control Vulnerabilities

Публикация: 07.10.2026·Обновлена: 08.10.2026, 06:55·Europe/Moscow

Что произошло

Автоперевод выключен · оригинальное описание

As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco NX-OS engineering team has conducted a comprehensive internal security review. This review resulted in a software hardening release that addresses multiple internally discovered vulnerabilities. The vulnerabilities tracked by CVE-2026-76455 are related to improper access control issues that are grouped under the Common Weakness Enumeration (CWE) CWE-284.

Что это значит

В источнике описана ошибка безопасности в перечисленных продуктах. Фактический риск зависит от установленной версии, конфигурации и доступности компонента; проверьте условия в первичном бюллетене.

Что делать

Редакционные пояснения, сведения источников и общие рекомендации помечены отдельно

Устранить в течение 24 ч

1. Проверьте, затронуты ли вы

Соберите инвентаризацию и сравните с таблицей затронутых версий. Эти команды только показывают установленные компоненты и сами по себе не доказывают наличие CVE.

Debian / Ubuntu

dpkg-query -W -f='${Package}	${Version}\n'

RHEL / AlmaLinux

rpm -qa --qf '%{NAME}\t%{VERSION}-%{RELEASE}\n'

Windows PowerShell

Get-HotFix | Select-Object HotFixID, InstalledOn

Общая рекомендация, не из бюллетеня вендора

2. Установите исправление

Сверьте точный продукт и версию с бюллетенем вендора. Установите указанное в нём исправление после резервного копирования и проверки совместимости. Подтверждённая целевая версия в источниках отсутствует.

Общая рекомендация, не из бюллетеня вендора

3. Временные меры

До проверки бюллетеня ограничьте доступ к затронутому компоненту доверенными узлами. Оцените сегментацию и отключение ненужных интерфейсов с владельцем сервиса; универсального правила WAF для этой CVE не подтверждено.

Общая рекомендация, не из бюллетеня вендора

4. Проверьте следы эксплуатации

Проверьте аномальные входы, новые учётные записи, ошибки и необычные дочерние процессы в затронутом сервисе. Публичные проверенные правила обнаружения не включены в запись; отсутствие сигналов не доказывает отсутствие компрометации.

Общая рекомендация, не из бюллетеня вендора

5. После исправления

Проверьте фактическую версию и результат установки по бюллетеню.
При необходимости перезапустите сервисы в согласованное окно.
Повторите проверку сканером и функциональные проверки.
Зафиксируйте результат, дату, владельца и оставшийся риск.

Продукты и затронутые версии

Cisco / Cisco NX-OS Software

{
  "status": "affected",
  "version": "8.2(5)"
}

{
  "status": "affected",
  "version": "7.3(5)D1(1)"
}

{
  "status": "affected",
  "version": "8.4(2)"
}

{
  "status": "affected",
  "version": "8.4(3)"
}

{
  "status": "affected",
  "version": "9.2(3)"
}

{
  "status": "affected",
  "version": "8.2(1)"
}

{
  "status": "affected",
  "version": "7.3(1)D1(1)"
}

{
  "status": "affected",
  "version": "9.2(2v)"
}

{
  "status": "affected",
  "version": "7.3(0)D1(1)"
}

{
  "status": "affected",
  "version": "7.3(4)D1(1)"
}

{
  "status": "affected",
  "version": "9.2(1)"
}

{
  "status": "affected",
  "version": "9.2(2t)"
}

{
  "status": "affected",
  "version": "9.2(3y)"
}

{
  "status": "affected",
  "version": "9.3(2)"
}

{
  "status": "affected",
  "version": "7.3(1)DY(1)"
}

{
  "status": "affected",
  "version": "8.1(1)"
}

{
  "status": "affected",
  "version": "8.2(2)"
}

{
  "status": "affected",
  "version": "8.3(2)"
}

{
  "status": "affected",
  "version": "7.3(2)D1(3a)"
}

{
  "status": "affected",
  "version": "9.2(4)"
}

{
  "status": "affected",
  "version": "8.1(2)"
}

{
  "status": "affected",
  "version": "7.3(3)D1(1)"
}

{
  "status": "affected",
  "version": "8.2(3)"
}

{
  "status": "affected",
  "version": "8.3(1)"
}

{
  "status": "affected",
  "version": "8.4(1)"
}

{
  "status": "affected",
  "version": "8.1(1b)"
}

{
  "status": "affected",
  "version": "7.3(0)DX(1)"
}

{
  "status": "affected",
  "version": "7.3(2)D1(1)"
}

{
  "status": "affected",
  "version": "9.3(1)"
}

{
  "status": "affected",
  "version": "7.3(2)D1(2)"
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{
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}

{
  "status": "affected",
  "version": "7.3(0)DY(1)"
}

{
  "status": "affected",
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}

{
  "status": "affected",
  "version": "9.2(2)"
}

{
  "status": "affected",
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}

{
  "status": "affected",
  "version": "7.3(2)D1(3)"
}

{
  "status": "affected",
  "version": "8.1(1a)"
}

{
  "status": "affected",
  "version": "8.4(1a)"
}

{
  "status": "affected",
  "version": "9.3(3)"
}

{
  "status": "affected",
  "version": "7.3(2)D1(1d)"
}

{
  "status": "affected",
  "version": "9.3(4)"
}

{
  "status": "affected",
  "version": "7.3(6)D1(1)"
}

{
  "status": "affected",
  "version": "8.2(6)"
}

{
  "status": "affected",
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}

{
  "status": "affected",
  "version": "8.4(2a)"
}

{
  "status": "affected",
  "version": "8.4(2b)"
}

{
  "status": "affected",
  "version": "8.5(1)"
}

{
  "status": "affected",
  "version": "9.3(6)"
}

{
  "status": "affected",
  "version": "8.4(4)"
}

{
  "status": "affected",
  "version": "7.3(7)D1(1)"
}

{
  "status": "affected",
  "version": "8.4(2c)"
}

{
  "status": "affected",
  "version": "9.3(5w)"
}

{
  "status": "affected",
  "version": "8.2(7)"
}

{
  "status": "affected",
  "version": "9.3(7)"
}

{
  "status": "affected",
  "version": "9.3(7k)"
}

{
  "status": "affected",
  "version": "7.3(8)D1(1)"
}

{
  "status": "affected",
  "version": "9.3(7a)"
}

{
  "status": "affected",
  "version": "8.2(7a)"
}

{
  "status": "affected",
  "version": "9.3(8)"
}

{
  "status": "affected",
  "version": "8.4(4a)"
}

{
  "status": "affected",
  "version": "8.4(2d)"
}

{
  "status": "affected",
  "version": "8.4(5)"
}

{
  "status": "affected",
  "version": "8.2(8)"
}

{
  "status": "affected",
  "version": "9.3(9)"
}

{
  "status": "affected",
  "version": "7.3(9)D1(1)"
}

{
  "status": "affected",
  "version": "8.4(6)"
}

{
  "status": "affected",
  "version": "8.4(2e)"
}

{
  "status": "affected",
  "version": "9.3(10)"
}

{
  "status": "affected",
  "version": "9.2(1a)"
}

{
  "status": "affected",
  "version": "8.2(9)"
}

{
  "status": "affected",
  "version": "10.3(1)"
}

{
  "status": "affected",
  "version": "8.4(7)"
}

{
  "status": "affected",
  "version": "10.3(2)"
}

{
  "status": "affected",
  "version": "8.4(6a)"
}

{
  "status": "affected",
  "version": "9.3(11)"
}

{
  "status": "affected",
  "version": "10.3(3)"
}

{
  "status": "affected",
  "version": "9.4(1)"
}

{
  "status": "affected",
  "version": "9.3(2a)"
}

{
  "status": "affected",
  "version": "8.4(2f)"
}

{
  "status": "affected",
  "version": "8.2(10)"
}

{
  "status": "affected",
  "version": "9.3(12)"
}

{
  "status": "affected",
  "version": "10.4(1)"
}

{
  "status": "affected",
  "version": "8.4(8)"
}

{
  "status": "affected",
  "version": "10.3(99w)"
}

{
  "status": "affected",
  "version": "10.3(3w)"
}

{
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}

{
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}

{
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}

{
  "status": "affected",
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}

{
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}

{
  "status": "affected",
  "version": "10.3(4a)"
}

{
  "status": "affected",
  "version": "9.4(1a)"
}

{
  "status": "affected",
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}

{
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{
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{
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{
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{
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}

{
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}

{
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}

{
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}

{
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}

{
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{
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{
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{
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{
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{
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{
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}

{
  "status": "affected",
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{
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}

{
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{
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}

{
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}

{
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}

{
  "status": "affected",
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}

{
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}

{
  "status": "affected",
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}

{
  "status": "affected",
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}

{
  "status": "affected",
  "version": "10.5(4)"
}

{
  "status": "affected",
  "version": "9.4(3b)"
}

{
  "status": "affected",
  "version": "8.4(12)"
}

{
  "status": "affected",
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}

{
  "status": "affected",
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}

{
  "status": "affected",
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}

{
  "status": "affected",
  "version": "10.4(6)"
}

{
  "status": "affected",
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}

{
  "status": "affected",
  "version": "10.5(3e)"
}

{
  "status": "affected",
  "version": "9.4(4)"
}

{
  "status": "affected",
  "version": "10.5(3o)"
}

{
  "status": "affected",
  "version": "9.3(16)"
}

{
  "status": "affected",
  "version": "10.6(1s)"
}

{
  "status": "affected",
  "version": "10.6(2)"
}

{
  "status": "affected",
  "version": "10.5(3p)"
}

{
  "status": "affected",
  "version": "9.4(5)"
}

{
  "status": "affected",
  "version": "10.3(9)"
}

{
  "status": "affected",
  "version": "10.6(2s)"
}

{
  "status": "affected",
  "version": "8.4(13)"
}

{
  "status": "affected",
  "version": "10.6(3)"
}

{
  "status": "affected",
  "version": "10.4(7)"
}

{
  "status": "affected",
  "version": "10.5(5)"
}

{
  "status": "affected",
  "version": "9.3(17)"
}

{
  "status": "affected",
  "version": "10.6(2n)"
}

{
  "status": "affected",
  "version": "10.6(3q)"
}

{
  "status": "affected",
  "version": "10.6(3o)"
}

{
  "status": "affected",
  "version": "10.6(3s)"
}

Cisco / Cisco NX-OS System Software in ACI Mode

{
  "status": "affected",
  "version": "15.2(1g)"
}

{
  "status": "affected",
  "version": "15.2(2e)"
}

{
  "status": "affected",
  "version": "15.2(2f)"
}

{
  "status": "affected",
  "version": "15.2(2g)"
}

{
  "status": "affected",
  "version": "15.2(2h)"
}

{
  "status": "affected",
  "version": "15.2(3f)"
}

{
  "status": "affected",
  "version": "15.2(3e)"
}

{
  "status": "affected",
  "version": "15.2(3g)"
}

{
  "status": "affected",
  "version": "15.2(4d)"
}

{
  "status": "affected",
  "version": "15.2(4e)"
}

{
  "status": "affected",
  "version": "15.2(5c)"
}

{
  "status": "affected",
  "version": "15.2(5d)"
}

{
  "status": "affected",
  "version": "16.0(1g)"
}

{
  "status": "affected",
  "version": "15.2(5e)"
}

{
  "status": "affected",
  "version": "15.2(4f)"
}

{
  "status": "affected",
  "version": "15.2(6e)"
}

{
  "status": "affected",
  "version": "15.2(6h)"
}

{
  "status": "affected",
  "version": "16.0(1j)"
}

{
  "status": "affected",
  "version": "15.2(6g)"
}

{
  "status": "affected",
  "version": "15.2(7f)"
}

{
  "status": "affected",
  "version": "15.2(7g)"
}

{
  "status": "affected",
  "version": "16.0(2h)"
}

{
  "status": "affected",
  "version": "15.2(8d)"
}

{
  "status": "affected",
  "version": "16.0(2j)"
}

{
  "status": "affected",
  "version": "15.2(8e)"
}

{
  "status": "affected",
  "version": "16.0(3d)"
}

{
  "status": "affected",
  "version": "16.0(3e)"
}

{
  "status": "affected",
  "version": "15.2(8f)"
}

{
  "status": "affected",
  "version": "15.2(8g)"
}

{
  "status": "affected",
  "version": "15.3(1d)"
}

{
  "status": "affected",
  "version": "15.2(8h)"
}

{
  "status": "affected",
  "version": "16.0(4c)"
}

{
  "status": "affected",
  "version": "15.3(2a)"
}

{
  "status": "affected",
  "version": "15.2(8i)"
}

{
  "status": "affected",
  "version": "16.0(5h)"
}

{
  "status": "affected",
  "version": "15.3(2b)"
}

{
  "status": "affected",
  "version": "16.0(3g)"
}

{
  "status": "affected",
  "version": "16.0(5j)"
}

{
  "status": "affected",
  "version": "15.3(2c)"
}

{
  "status": "affected",
  "version": "16.0(6c)"
}

{
  "status": "affected",
  "version": "15.3(2d)"
}

{
  "status": "affected",
  "version": "16.1(1f)"
}

{
  "status": "affected",
  "version": "16.0(7e)"
}

{
  "status": "affected",
  "version": "16.0(8e)"
}

{
  "status": "affected",
  "version": "15.3(2e)"
}

{
  "status": "affected",
  "version": "16.0(8f)"
}

{
  "status": "affected",
  "version": "16.1(2f)"
}

{
  "status": "affected",
  "version": "16.1(2g)"
}

{
  "status": "affected",
  "version": "15.3(2f)"
}

{
  "status": "affected",
  "version": "16.0(9c)"
}

{
  "status": "affected",
  "version": "16.1(3f)"
}

{
  "status": "affected",
  "version": "16.0(9d)"
}

{
  "status": "affected",
  "version": "16.0(6h)"
}

{
  "status": "affected",
  "version": "16.0(8h)"
}

{
  "status": "affected",
  "version": "16.1(3g)"
}

{
  "status": "affected",
  "version": "16.0(9e)"
}

{
  "status": "affected",
  "version": "16.1(4h)"
}

{
  "status": "affected",
  "version": "16.1(5e)"
}

{
  "status": "affected",
  "version": "16.2(1g)"
}

{
  "status": "affected",
  "version": "16.0(9f)"
}

{
  "status": "affected",
  "version": "16.2(2e)"
}

Cisco / Cisco Unified Computing System (Managed)

{
  "status": "affected",
  "version": "4.0(1a)"
}

{
  "status": "affected",
  "version": "4.1(1d)"
}

{
  "status": "affected",
  "version": "4.0(4f)"
}

{
  "status": "affected",
  "version": "4.0(4c)"
}

{
  "status": "affected",
  "version": "4.0(2b)"
}

{
  "status": "affected",
  "version": "4.1(2a)"
}

{
  "status": "affected",
  "version": "4.0(4a)"
}

{
  "status": "affected",
  "version": "4.0(4e)"
}

{
  "status": "affected",
  "version": "4.0(4h)"
}

{
  "status": "affected",
  "version": "4.0(2a)"
}

{
  "status": "affected",
  "version": "4.1(1c)"
}

{
  "status": "affected",
  "version": "4.0(1b)"
}

{
  "status": "affected",
  "version": "4.1(1e)"
}

{
  "status": "affected",
  "version": "4.0(4d)"
}

{
  "status": "affected",
  "version": "4.0(4b)"
}

{
  "status": "affected",
  "version": "4.0(2e)"
}

{
  "status": "affected",
  "version": "4.1(1a)"
}

{
  "status": "affected",
  "version": "4.0(4g)"
}

{
  "status": "affected",
  "version": "4.0(1d)"
}

{
  "status": "affected",
  "version": "4.0(1c)"
}

{
  "status": "affected",
  "version": "4.0(4i)"
}

{
  "status": "affected",
  "version": "4.0(2d)"
}

{
  "status": "affected",
  "version": "4.1(1b)"
}

{
  "status": "affected",
  "version": "4.1(2b)"
}

{
  "status": "affected",
  "version": "4.0(4k)"
}

{
  "status": "affected",
  "version": "4.1(3a)"
}

{
  "status": "affected",
  "version": "4.1(3b)"
}

{
  "status": "affected",
  "version": "4.1(2c)"
}

{
  "status": "affected",
  "version": "4.0(4l)"
}

{
  "status": "affected",
  "version": "4.1(4a)"
}

{
  "status": "affected",
  "version": "4.1(3c)"
}

{
  "status": "affected",
  "version": "4.1(3d)"
}

{
  "status": "affected",
  "version": "4.2(1c)"
}

{
  "status": "affected",
  "version": "4.2(1d)"
}

{
  "status": "affected",
  "version": "4.0(4m)"
}

{
  "status": "affected",
  "version": "4.1(3e)"
}

{
  "status": "affected",
  "version": "4.2(1f)"
}

{
  "status": "affected",
  "version": "4.1(3f)"
}

{
  "status": "affected",
  "version": "4.2(1i)"
}

{
  "status": "affected",
  "version": "4.1(3h)"
}

{
  "status": "affected",
  "version": "4.2(1k)"
}

{
  "status": "affected",
  "version": "4.2(1l)"
}

{
  "status": "affected",
  "version": "4.0(4n)"
}

{
  "status": "affected",
  "version": "4.2(1m)"
}

{
  "status": "affected",
  "version": "4.1(3i)"
}

{
  "status": "affected",
  "version": "4.2(2a)"
}

{
  "status": "affected",
  "version": "4.2(1n)"
}

{
  "status": "affected",
  "version": "4.1(3j)"
}

{
  "status": "affected",
  "version": "4.2(2c)"
}

{
  "status": "affected",
  "version": "4.2(2d)"
}

{
  "status": "affected",
  "version": "4.2(3b)"
}

{
  "status": "affected",
  "version": "4.1(3k)"
}

{
  "status": "affected",
  "version": "4.0(4o)"
}

{
  "status": "affected",
  "version": "4.2(2e)"
}

{
  "status": "affected",
  "version": "4.2(3d)"
}

{
  "status": "affected",
  "version": "4.2(3e)"
}

{
  "status": "affected",
  "version": "4.2(3g)"
}

{
  "status": "affected",
  "version": "4.1(3l)"
}

{
  "status": "affected",
  "version": "4.3(2b)"
}

{
  "status": "affected",
  "version": "4.2(3h)"
}

{
  "status": "affected",
  "version": "4.2(3i)"
}

{
  "status": "affected",
  "version": "4.3(2c)"
}

{
  "status": "affected",
  "version": "4.1(3m)"
}

{
  "status": "affected",
  "version": "4.3(2e)"
}

{
  "status": "affected",
  "version": "4.3(3a)"
}

{
  "status": "affected",
  "version": "4.2(3j)"
}

{
  "status": "affected",
  "version": "4.3(3c)"
}

{
  "status": "affected",
  "version": "4.3(4a)"
}

{
  "status": "affected",
  "version": "4.2(3k)"
}

{
  "status": "affected",
  "version": "4.3(4b)"
}

{
  "status": "affected",
  "version": "4.3(4c)"
}

{
  "status": "affected",
  "version": "4.2(3l)"
}

{
  "status": "affected",
  "version": "4.3(4d)"
}

{
  "status": "affected",
  "version": "4.3(2f)"
}

{
  "status": "affected",
  "version": "4.2(3m)"
}

{
  "status": "affected",
  "version": "4.3(5a)"
}

{
  "status": "affected",
  "version": "4.3(4e)"
}

{
  "status": "affected",
  "version": "4.1(3n)"
}

{
  "status": "affected",
  "version": "4.3(4f)"
}

{
  "status": "affected",
  "version": "4.2(3n)"
}

{
  "status": "affected",
  "version": "4.3(5c)"
}

{
  "status": "affected",
  "version": "4.2(3o)"
}

{
  "status": "affected",
  "version": "4.3(5d)"
}

{
  "status": "affected",
  "version": "4.3(6a)"
}

{
  "status": "affected",
  "version": "4.3(6b)"
}

{
  "status": "affected",
  "version": "4.3(5e)"
}

{
  "status": "affected",
  "version": "4.3(6c)"
}

{
  "status": "affected",
  "version": "4.2(3p)"
}

{
  "status": "affected",
  "version": "6.0(1b)"
}

{
  "status": "affected",
  "version": "6.0(1c)"
}

{
  "status": "affected",
  "version": "4.3(6d)"
}

{
  "status": "affected",
  "version": "6.0(1d)"
}

{
  "status": "affected",
  "version": "6.0(1e)"
}

{
  "status": "affected",
  "version": "4.3(6e)"
}

{
  "status": "affected",
  "version": "6.0(1f)"
}

{
  "status": "affected",
  "version": "4.3(6f)"
}

{
  "status": "affected",
  "version": "6.0(2b)"
}

{
  "status": "affected",
  "version": "6.0(1h)"
}

{
  "status": "affected",
  "version": "4.2(3r)"
}

{
  "status": "affected",
  "version": "6.0(2c)"
}

{
  "status": "affected",
  "version": "4.3(6g)"
}

{
  "status": "affected",
  "version": "6.0(2d)"
}

{
  "status": "affected",
  "version": "4.3(6h)"
}

{
  "status": "affected",
  "version": "4.2(3s)"
}

{
  "status": "affected",
  "version": "4.3(6i)"
}

CVSS: оценки и векторы

CVSS 3.1 · cve9.8

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

AV · Вектор атакисеть

AC · Сложность атакинизкая

PR · Привилегиине нужны

UI · Участие пользователяне нужно

S · Область воздействияне меняется

C · Конфиденциальностьвысокое

I · Целостностьвысокое

A · Доступностьвысокое

Классы CWE

CWE-284 · Некорректное управление доступом

Источники и ссылки

Материал · sec.cloudapps.cisco.com · cve CVE Program · www.cve.org · CVE Program NVD · nvd.nist.gov · NVD

Происхождение полей

{
  "cwes": [
    "cve"
  ],
  "epss": {
    "source": "epss",
    "received_at": "2026-11-03T21:15:05.735487+00:00"
  },
  "title": {
    "source": "cve",
    "received_at": "2026-10-28T21:10:38.173548+00:00"
  },
  "scores": [
    "cve"
  ],
  "status": {
    "source": "cve",
    "received_at": "2026-10-28T21:10:38.173548+00:00"
  },
  "affected": [
    "cve"
  ],
  "published": {
    "source": "cve",
    "received_at": "2026-10-28T21:10:38.173548+00:00"
  },
  "solutions": [],
  "percentile": {
    "source": "epss",
    "received_at": "2026-11-03T21:15:05.735487+00:00"
  },
  "references": [
    "cve"
  ],
  "description": {
    "source": "cve",
    "received_at": "2026-10-28T21:10:38.173548+00:00"
  },
  "workarounds": [],
  "configurations": []
}

Хронология записи

Данные обновлены04.11.2026, 00:15
Данные обновлены03.11.2026, 00:14
Данные обновлены02.11.2026, 00:12
Данные обновлены31.10.2026, 11:59
Данные обновлены29.10.2026, 12:40
Опубликована29.10.2026, 00:10

Личная заметка и статус

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