CVE-2026-20305 Cisco ISE - Command Injection & Privilege Escalation

Cisco ISE and ISE-PIC contain a command injection caused by improper validation of user-supplied input in diagnostic tools, letting authenticated remote attackers execute arbitrary code and elevate privileges to root, exploit requires administrative credentials.

CVSS base score 9.1 /10
Critical
CISA KEV
Not listed
Public exploit
None known
Authentication
Required
EPSS
1.41% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Command Injection
Impact
Remote Code Execution, Privilege Escalation, Denial Of Service
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
Published
16 September 2026
Updated
15 October 2026
Weakness
CWE-78

Vendor fix

Update to the latest available version that addresses this vulnerability.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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