Vulnerabilities & Exploits · DDoS

ASA and FTD OSPF Flaws Can Cause Device Reloads

Attacks can disrupt routing availability and downstream services.

5 sources · Mar 5

CVEs in this update

6 CVEs

Across Cisco Secure Firewall Adaptive Security Appliance (ASA) Software, Cisco Secure Firewall Threat Defense (FTD) Software.

0 critical · 0 high · 6 medium · 0 low

0 in CISA KEV · 0 with EPSS above 1%

Highest severity: CVE-2026-20020 · 6.8 MEDIUM

Timeline

Sources

Vendor digest: Cisco

Part of the PlainSec briefing for 2026-03-05

Every edition of this story: ASA and FTD OSPF Flaws Can Cause Device Reloads

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