Vulnerability in Cisco Adaptive_security_appliance_software

CVE-2026-20349

A vulnerability in the Remote Access SSL VPN service for Cisco Secure Firewall Adaptive Security Appliance (ASA) Software and Cisco Secure Firewall Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause the…

CVSS v3 metric

CVSS v3 base score 8.6 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-20349?
CVE-2026-20349 is a high-severity vulnerability in Cisco Adaptive_security_appliance_software, classified under CWE-244. CVSS score: 8.6/10. Published 2026-08-11.
How severe is CVE-2026-20349?
High severity. CVSS v3 base score is 8.6 out of 10.