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CVE-2024-20353

CISA KEV

Published April 24, 2024 · Updated April 3, 2026

high
Official 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.

Affected Products

VendorProduct
CiscoAdaptive Security Appliance (ASA) and Firepower Threat Defense (FTD)

Patch Status

Patch by 2024-05-01

Recommended Actions

  1. Check if your systems use any of the affected products listed above.
  2. Apply vendor patches immediately if available.
  3. This vulnerability is in CISA's Known Exploited Vulnerabilities catalog — prioritize remediation.
  4. Monitor vendor advisories for updates and additional mitigations.
  5. Review logs for indicators of compromise related to CVE-2024-20353.