CVE-2023-44487High· 7.5▾ Abyssal⚠ Exploited in the wild0dayPoC availableThe HTTP/2 protocol allows a denial of service (server resource consumption) because request cancellation can reset many streams quickly, as exploited in the wild in August through October 2023.
▾ Abyssal zone — Critical with a public exploit or in-the-wild use
impact 41.3 · likelihood 20 · exploitation 25
A public proof-of-concept already exists for this vulnerability — see Exploit availability below.
Public exploit / PoC code seen in 2 sources. Availability, not in-the-wild use.
Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake. The CVSS score shown above comes from the CISA ADP record, not NVD.
Exploit-prediction probability, daily snapshots since Oct 15.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CVEORG
Federal remediation due Oct 31, 2023
Last analysed / modified upstream
100%
Exploit-DB · 26 GitHub repos (last check)
Added to the CISA catalog on Oct 10, 2023. Federal remediation due Oct 31, 2023. View catalog ↗
The HTTP/2 protocol allows a denial of service (server resource consumption) because request cancellation can reset many streams quickly, as exploited in the wild in August through October 2023.
Refer to the linked advisories for vendor-supplied fixes and affected version ranges.