Risk Letters

Exploited vulnerability

CVE-2023-44487

TLP:CLEAR

HTTP/2 Rapid Reset Attack Vulnerability

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

Facts

  • Vendor: IETF
  • Product: HTTP/2
  • CVSS: 7.5
  • EPSS (probability of exploitation within 30 days): 100 %
  • On CISA's Known Exploited Vulnerabilities list since: 10 October 2023
  • First known exploitation: 10 October 2023
  • CISA's deadline for US federal agencies: 31 October 2023
  • Weakness: CWE-400
  • First seen by Risk Letters: 10 October 2023

Members see which Nordic sectors the flaw hits, and what to do about it.

Get the full brief

Data: NVD (public domain), CISA KEV, FIRST EPSS, MITRE ATT&CK, AlienVault OTX. NVD