CVE-2026-20247 Cisco Identity Services Engine Unauthenticated SQL Injection Vulnerability
Unauthenticated remote attackers can perform SQL injection to modify database data in Cisco Identity Services Engine.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-20247?
CVE-2026-20247 is a high-severity SQL injection vulnerability in Cisco Identity Services Engine Software, published on 16 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A vulnerability in Cisco ISE could allow an unauthenticated, remote attacker to conduct SQL injection attacks on an affected device. 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 modify data in the underlying database.
Weakness: CWE-89
Which versions are affected by CVE-2026-20247?
How do I fix CVE-2026-20247?
No fix has been published for CVE-2026-20247 yet. Limit exposure of the affected software until one is available.
Use parameterised queries everywhere and never build SQL by joining strings. Upgrade affected software first; a web application firewall only buys time. More about SQL injection.
Is CVE-2026-20247 being exploited?
There is no known exploitation of CVE-2026-20247 in the wild and no public exploit code.
Sources
Also known as GHSA-x5qw-hwvr-5f3m.