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CVE-2023-44487

CISA KEV

Published October 10, 2023 · Updated April 3, 2026

high
Official Description+

HTTP/2 contains a rapid reset vulnerability that allows for a distributed denial-of-service attack (DDoS).

Affected Products

VendorProduct
IETFHTTP/2

Patch Status

Patch by 2023-10-31

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-2023-44487.