CVE-2025-20198
Описание уязвимости
Что произошло
A vulnerability in the CLI of Cisco IOS XE Software could allow an authenticated, local attacker with privilege level 15 to elevate privileges to root on the underlying operating system of an affected device. This vulnerability is due to insufficient input validation when processing specific configuration commands. An attacker could exploit this vulnerability by including crafted input in specific configuration commands. A successful exploit could allow the attacker to elevate privileges to root on the underlying operating system of an affected device. The security impact rating (SIR) of this advisory has been raised to High because an attacker could gain access to the underlying operating system of the affected device and perform potentially undetected actions. Note: The attacker must have privileges to enter configuration mode on the affected device. This is usually referred to as privilege level 15.
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
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.
dpkg-query -W -f='${Package} ${Version}\n'rpm -qa --qf '%{NAME}\t%{VERSION}-%{RELEASE}\n'Get-HotFix | Select-Object HotFixID, InstalledOn
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.
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.
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.
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 IOS XE Software
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"status": "affected",
"version": "17.5.1"
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"version": "17.6.2"
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"status": "affected",
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"status": "affected",
"version": "17.6.1a"
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"status": "affected",
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"version": "17.6.3"
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"status": "affected",
"version": "17.6.1y"
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"status": "affected",
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"status": "affected",
"version": "17.6.3a"
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"version": "17.6.1z1"
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"version": "17.6.5"
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"status": "affected",
"version": "17.6.6a"
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"status": "affected",
"version": "17.6.5a"
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"version": "17.6.7"
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"status": "affected",
"version": "17.6.8"
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"status": "affected",
"version": "17.6.8a"
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"status": "affected",
"version": "17.7.1"
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"status": "affected",
"version": "17.7.1a"
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"status": "affected",
"version": "17.7.1b"
}{
"status": "affected",
"version": "17.7.2"
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"status": "affected",
"version": "17.10.1"
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"status": "affected",
"version": "17.10.1a"
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"status": "affected",
"version": "17.10.1b"
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"status": "affected",
"version": "17.8.1"
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"status": "affected",
"version": "17.8.1a"
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"status": "affected",
"version": "17.9.1"
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"status": "affected",
"version": "17.9.1w"
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"status": "affected",
"version": "17.9.2"
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"status": "affected",
"version": "17.9.1a"
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"status": "affected",
"version": "17.9.1x"
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"version": "17.9.1y"
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}{
"status": "affected",
"version": "17.9.2a"
}{
"status": "affected",
"version": "17.9.1x1"
}{
"status": "affected",
"version": "17.9.3a"
}{
"status": "affected",
"version": "17.9.4"
}{
"status": "affected",
"version": "17.9.1y1"
}{
"status": "affected",
"version": "17.9.5"
}{
"status": "affected",
"version": "17.9.4a"
}{
"status": "affected",
"version": "17.9.5a"
}{
"status": "affected",
"version": "17.9.5b"
}{
"status": "affected",
"version": "17.9.6"
}{
"status": "affected",
"version": "17.9.6a"
}{
"status": "affected",
"version": "17.9.5e"
}{
"status": "affected",
"version": "17.9.5f"
}{
"status": "affected",
"version": "17.11.1"
}{
"status": "affected",
"version": "17.11.1a"
}{
"status": "affected",
"version": "17.12.1"
}{
"status": "affected",
"version": "17.12.1w"
}{
"status": "affected",
"version": "17.12.1a"
}{
"status": "affected",
"version": "17.12.1x"
}{
"status": "affected",
"version": "17.12.2"
}{
"status": "affected",
"version": "17.12.3"
}{
"status": "affected",
"version": "17.12.2a"
}{
"status": "affected",
"version": "17.12.1y"
}{
"status": "affected",
"version": "17.12.1z"
}{
"status": "affected",
"version": "17.12.4"
}{
"status": "affected",
"version": "17.12.3a"
}{
"status": "affected",
"version": "17.12.1z1"
}{
"status": "affected",
"version": "17.12.4a"
}{
"status": "affected",
"version": "17.12.4b"
}{
"status": "affected",
"version": "17.13.1"
}{
"status": "affected",
"version": "17.13.1a"
}{
"status": "affected",
"version": "17.14.1"
}{
"status": "affected",
"version": "17.14.1a"
}{
"status": "affected",
"version": "17.11.99SW"
}{
"status": "affected",
"version": "17.15.1"
}{
"status": "affected",
"version": "17.15.1w"
}{
"status": "affected",
"version": "17.15.1a"
}{
"status": "affected",
"version": "17.15.1b"
}CVSS: оценки и векторы
CVSS 3.1 · cve4.6
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N
Источники и ссылки
Происхождение полей
{
"cwes": [
"cve"
],
"epss": {
"source": "epss",
"received_at": "2026-11-03T21:09:10.193153+00:00"
},
"scores": [
"cve"
],
"status": {
"source": "cve",
"received_at": "2026-11-03T22:12:39.003526+00:00"
},
"affected": [
"cve"
],
"published": {
"source": "cve",
"received_at": "2026-11-03T22:12:39.003526+00:00"
},
"solutions": [],
"percentile": {
"source": "epss",
"received_at": "2026-11-03T21:09:10.193153+00:00"
},
"references": [
"cve"
],
"description": {
"source": "cve",
"received_at": "2026-11-03T22:12:39.003526+00:00"
},
"workarounds": [],
"configurations": []
}Хронология записи
- Данные обновлены04.11.2026, 00:09
- Данные обновлены03.11.2026, 00:08
- Данные обновлены02.11.2026, 00:07
- Данные обновлены31.10.2026, 11:55
- Данные обновлены30.10.2026, 14:06
- Данные обновлены28.10.2026, 18:03
- Опубликована28.10.2026, 15:51
Личная заметка и статус
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