SQL Injection in Cisco Identity Services Engine Software

CVE-2026-20300

A vulnerability in Cisco ISE could allow an authenticated, remote attacker to conduct SQL injection attacks on an affected device. To exploit this vulnerability, the attacker must have at least low-privileged administrative credentials. This vulnerability is due to improper validation of user-supplied input. An attacker could exploit this vulnerability by sending a crafted request to an affected device. A successful exploit could allow the attacker to read or modify data in the underlying database.

Vulnerability class: SQL Injection

CVSS v3 metric

CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-20300?
CVE-2026-20300 is a high-severity vulnerability in Cisco Identity Services Engine Software, classified under SQL Injection. CVSS score: 7.1/10. Published 2026-09-16.
How severe is CVE-2026-20300?
High severity. CVSS v3 base score is 7.1 out of 10.