CVE-2023-44487β€”HTTP/2 Rapid Reset Attack Vulnerability

PUBLISHEDvulnerability record
2023-10-10 Β· last modified June 21, 2025

Metadata

CVE ID:
CVE-2023-44487
Project:
IETF
Product:
HTTP/2
Date Added:
2023-10-10
Due Date:
2023-10-31
Last Updated:
June 21, 2025

Vulnerability Name

HTTP/2 Rapid Reset Attack Vulnerability

Description

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

Known To Be Used in Ransomware Campaigns?

Ransomware Status:
Unknown

Action

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Additional Notes

  • This vulnerability affects a common open-source component, third-party library, or protocol used by different products. For more information, please see: HTTP/2 Rapid Reset Vulnerability, CVE-2023-44487 | CISA: https://www.cisa.gov/news-events/alerts/2023/10/10/http2-rapid-reset-vulnerability-cve-2023-44487
  • https://blog.cloudflare.com/technical-breakdown-http2-rapid-reset-ddos-attack/
  • https://nvd.nist.gov/vuln/detail/CVE-2023-44487

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