CVE-2024-20353CISA KEVEPSS p99.1%

CVE-2024-20353Cisco ASA and FTD Denial of Service Vulnerability

Cisco / Adaptive Security Appliance (ASA) and Firepower Threat Defense (FTD)

Description

Cisco Adaptive Security Appliance (ASA) and Firepower Threat Defense (FTD) contain an infinite loop vulnerability that can lead to remote denial of service condition.

Scoring

EPSS63.27% probability of exploitation · percentile 99.1% · 2026-06-18T12:00:27Z

CISA KEV entry

Added to KEV: 2024-04-24

(incoming)1

TypeTargetConfidenceTier
KEVEntryCisco ASA and FTD Denial of Service Vulnerabilitykev-cve-2024-203530%live

Related by meaning· 6

Nearest entities by semantic similarity across the cs-graph corpus.

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Cisco ASA and FTD Denial-of-Service Vulnerability
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Cisco ASA and FTD Privilege Escalation Vulnerability
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Cisco Secure Firewall Adaptive Security Appliance (ASA) and Secure Firewall Threat Defense (FTD) Buffer Overflow Vulnerability
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CVE-2025-20263
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CVE-2025-20136
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Cisco Secure Firewall Adaptive Security (ASA) Appliance and Secure Firewall Threat Defense (FTD) Missing Authorization Vulnerability
Sourced from NVD + CISA KEV + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.