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CVE-2024-20353: Cisco ASA and FTD Denial of Service Vulnerability
Cisco Adaptive Security Appliance (ASA) and Firepower Threat Defense (FTD) · in CISA KEV since 2024-04-24
2024-04-24added to KEV
2024-05-01federal remediation due date
70.69%EPSS exploit probability (30 days) 99.4th percentile
8.6 HIGHCVSS 3.1
Unknownknown ransomware use
0days from NVD publication to KEV
What it is
Cisco Adaptive Security Appliance (ASA) and Firepower Threat Defense (FTD) contain an infinite loop vulnerability that can lead to remote denial of service condition.
Required action (CISA)
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
| CWE | CWE-835 |
|---|---|
| CVSS vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H |
| NVD published | 2024-04-24 (Analyzed) |
Original records: NVD · CISA KEV · JSON: /api/cve/CVE-2024-20353.json · all KEV CVEs
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Get the full file: Exploited Vulnerabilities Brief – September 2026 ($29): this month's KEV additions ranked by EPSS, ransomware use and due date, ready to hand to a patch team. Checkout by Polar.
Get the full file: Exploited Vulnerabilities Brief – September 2026 ($29): this month's KEV additions ranked by EPSS, ransomware use and due date, ready to hand to a patch team. Checkout by Polar.