Cisco ASA and FTD SSL VPN zero-day crashed firewalls in attacks
Unauthenticated attackers can reload devices that have webvpn and SSL VPN enabled; Cisco found exploitation in October 2026.
78
Product
Adaptive Security Appliance
- Mentions · 7d1
- Mentions · 30d1
- All mentions2
- First seenSep 16, 2026
- Last mentioned1d ago
Timeline
2 articles · newest firstCisco Secure Firewall Adaptive Security Appliance and Secure Firewall Threat Defense Software SSL VPN Denial of Service Vulnerability
Cisco expanded an SSL VPN denial-of-service advisory to cover all ASA and FTD software platforms; unauthenticated attackers can exhaust device memory.
45
Related CVEs
by mentions- CVE-2026-76418<1%8.6Unauthenticated DoS in Cisco ASA and FTD SSL VPN with secondary auth
Appears with
- Ciscovendor · 2
- Shadowserverorganization · 1
- Threat Defenseproduct · 1
- Secure Firewall Threat Defenseproduct · 1
- FTDvproduct · 1
- ASAvproduct · 1
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