CVE record · 5 sources
CVE-2026-20349
KEVCVSS 8.6Cisco Secure Firewall Adaptive Security Appliance (ASA) and Secure Firewall Threat Defense (FTD) contain a heap inspection vulnerability that could…
- Vendor
- Cisco
- Product
- asa, ftd
- CVSS
- 8.6
- CISA KEV
- listed
- Exposure class
- Edge / VPN / firewall, Operating system, Database
Coverage
5Every item in the archive that references this CVE, highest rank first. Headlines open the publisher.
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Cisco Secure Firewall Adaptive Security Appliance (ASA) and Secure Firewall Threat Defense (FTD) contain a heap inspection vulnerability that could…
Cisco Secure Firewall Adaptive Security Appliance (ASA) and Secure Firewall Threat Defense (FTD) contain a heap inspection vulnerability that could allow an unauthenticated, remote attacker to cause the device to reload…
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CVE-2026-20349: Someone Is Crashing Cisco Firewalls. We Need to Talk About Why.
An unauthenticated attacker can crash any Cisco ASA or FTD with SSL VPN exposed; it’s been confirmed exploited in the wild, and Cisco hasn’t told us who or why. Attackers Can Force Your Firewall To Reboot If you run a Cisco…
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CISA Adds Three Known Exploited Vulnerabilities to Catalog
CISA has added three new vulnerabilities to its Known Exploited Vulnerabilities (KEV) Catalog , based on evidence of active exploitation. CVE-2026-20349 Cisco Secure Firewall Adaptive Security Appliance (ASA) and Firewall Threat…
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Cisco Secure Firewall Adaptive Security Appliance and Secure Firewall Threat Defense Software Remote Access SSL VPN Denial of Service Vulnerability
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…
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August 2026 CVE Landscape
In August 2026, Insikt Group® identified 73 high-impact vulnerabilities that should be prioritized for remediation, 43 of which had a Very Critical Recorded Future Risk Score. This represents a 14% decrease from last month.