Vulnerability in Cisco Secure Firewall Adaptive Security Appliance (Asa) Software
CVE-2026-76418
A vulnerability in the Remote Access SSL VPN service of 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 device to reload unexpectedly, resulting in a denial of service (DoS) condition. This vulnerability is due to logic errors when secondary authentication is configured on a tunnel group. An attacker could exploit this vulnerability by sending a crafted request when connecting to the SSL remote access VPN. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a DoS condition.
Published · last modified .
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.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
- Cisco Secure Firewall Adaptive Security Appliance (Asa) Software — versions 9.16.1, 9.16.1.28, 9.16.2
- Cisco Secure Firewall Threat Defense (Ftd) Software — versions 10.0.0, 10.0.2, 10.1.0
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2026-76418?
- CVE-2026-76418 is a high-severity vulnerability in Cisco Secure Firewall Adaptive Security Appliance (Asa) Software, classified under CWE-690. CVSS score: 8.6/10. Published 2026-10-28.
- How severe is CVE-2026-76418?
- High severity. CVSS v3 base score is 8.6 out of 10.