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CVE-2026-203059.1CriticalCWE-78

Cisco Identity Services Engine Command Injection Vulnerability

Cisco · Cisco Identity Services Engine Software

Not in CISA KEV
1.6%probability of exploitation in the next 30 days
75th percentile
050100

Higher than 75% of scored CVEs

9.1CriticalCVSS 3.1
LowCrit.

DescriptionNVD

A vulnerability in the diagnostic tools of Cisco ISE and ISE-PIC could allow an authenticated, remote attacker to perform command injection attacks on the underlying operating system and elevate privileges to root. To exploit this vulnerability, the attacker must have valid administrative credentials. This vulnerability is due to improper validation of user-supplied input. An attacker could exploit this vulnerability by sending crafted commands to the web-based management interface of an affected device. A successful exploit could allow the attacker to execute arbitrary code on the device and elevate privileges to root. In single-node deployments, successful exploitation of this vulnerability could cause the affected ISE node to become unavailable, resulting in a denial of service (DoS) condition. In that condition, endpoints that have not already authenticated would be unable to access the network until the node is restored.

Coverage1 article · 1 outlet

First in our coverage: SecurityOnline, 17 Sep.

  1. Cisco Patches Critical ISE Flaws Enabling Unauthenticated Admin Access
    SecurityOnline · first in our coverage · mentions it in passing

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References

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