CVE-2026-20234 Cisco Identity Services Engine - Hardcoded Credentials

Cisco Identity Services Engine (ISE) and ISE Passive Identity Connector contain insufficiently protected credentials vulnerabilities caused by weak credential protection, letting attackers potentially access sensitive credentials, exploit requires internal access.

CVSS base score 9.9 /10
Critical
CISA KEV
Not listed
Public exploit
None known
EPSS
0.37% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Hardcoded Credentials
Impact
Privilege Escalation, Information Disclosure
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Published
16 September 2026
Updated
15 October 2026
Weakness
CWE-522

Vendor fix

Update to the latest software hardening release provided by Cisco.

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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