8.8

CVE-2026-20040

Medienbericht
A vulnerability in the CLI of Cisco IOS XR Software could allow an authenticated, local attacker to execute arbitrary commands as root on the underlying operating system of an affected device.

This vulnerability is due to insufficient validation of user arguments that are passed to specific CLI commands. An attacker with a low-privileged account could exploit this vulnerability by using crafted commands at the prompt. A successful exploit could allow the attacker to elevate privileges to root and execute arbitrary commands on the underlying operating system.
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HerstellerCisco
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Produkt Cisco IOS XR Software
Default Statusunknown
Version 6.5.3
Status affected
Version 6.5.29
Status affected
Version 6.5.1
Status affected
Version 6.6.1
Status affected
Version 6.5.2
Status affected
Version 6.5.92
Status affected
Version 6.5.15
Status affected
Version 6.6.2
Status affected
Version 7.0.1
Status affected
Version 6.6.25
Status affected
Version 6.5.26
Status affected
Version 6.6.11
Status affected
Version 6.5.25
Status affected
Version 6.5.28
Status affected
Version 6.5.93
Status affected
Version 6.6.12
Status affected
Version 6.5.90
Status affected
Version 7.1.1
Status affected
Version 7.0.90
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Version 6.6.3
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Version 6.7.1
Status affected
Version 7.0.2
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Version 7.1.15
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Version 7.2.1
Status affected
Version 7.1.2
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Version 6.7.2
Status affected
Version 7.0.11
Status affected
Version 7.0.12
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Version 7.0.14
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Version 7.1.25
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Version 6.6.4
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Version 7.2.12
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Version 7.3.1
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Version 7.1.3
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Version 6.7.3
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Version 7.4.1
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Version 7.2.2
Status affected
Version 6.7.4
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Version 6.5.31
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Version 7.3.15
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Version 7.3.16
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Version 6.8.1
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Version 7.4.15
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Version 6.5.32
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Version 7.3.2
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Version 7.5.1
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Version 7.4.16
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Version 7.3.27
Status affected
Version 7.6.1
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Version 7.5.2
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Version 7.8.1
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Version 7.6.15
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Version 7.5.12
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Version 7.8.12
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Version 7.3.3
Status affected
Version 7.7.1
Status affected
Version 6.8.2
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Version 7.3.4
Status affected
Version 7.4.2
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Version 6.7.35
Status affected
Version 6.9.1
Status affected
Version 7.6.2
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Version 7.5.3
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Version 7.7.2
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Version 6.9.2
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Version 7.9.1
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Version 7.10.1
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Version 7.8.2
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Version 7.5.4
Status affected
Version 6.5.33
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Version 7.8.22
Status affected
Version 7.7.21
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Version 7.9.2
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Version 7.3.5
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Version 7.5.5
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Version 7.11.1
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Version 7.9.21
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Version 7.10.2
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Version 24.1.1
Status affected
Version 7.6.3
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Version 7.3.6
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Version 7.5.52
Status affected
Version 7.11.2
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Version 24.2.1
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Version 24.1.2
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Version 24.2.11
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Version 24.3.1
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Version 24.4.1
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Version 24.2.2
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Version 7.8.23
Status affected
Version 7.11.21
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Version 24.2.20
Status affected
Version 24.3.2
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Version 24.4.10
Status affected
Version 6.5.35
Status affected
Version 25.1.1
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Version 24.4.2
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Version 24.3.20
Status affected
Version 24.4.15
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Version 25.2.1
Status affected
Version 6.5.351
Status affected
Version 25.1.2
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Version 24.3.30
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Version 25.3.1
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Version 6.5.352
Status affected
Version 24.4.30
Status affected
Version 24.2.21
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Version 25.4.1
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Version 25.2.2
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Version 25.2.15
Status affected
Version 7.2.0
Status affected
Version 7.0.0
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Version 25.2.30
Status affected
Version 6.5.353
Status affected
Version 25.1.30
Status affected
Version 25.3.15
Status affected
Zu dieser CVE wurde keine CISA KEV oder CERT.AT-Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.04% 0.129
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
psirt@cisco.com 8.8 2 6
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component.