CVE-2023-44487
CVSS v3
7.5
HIGH
EPSS Score
94.4 %
exploit probability
CISA KEV
Yes
known exploited
Exploitation
—
SSVC status
Description
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.
CISA Known Exploited Vulnerability
- Date Added
- 2023-10-10
- Patch Due Date
- 2023-10-31
- Ransomware Use
- Unknown
Technical details
- CVSS v3 Vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Published
- 2023-10-10
- Last Modified
- 2026-08-11
- Exploit-DB
- EDB-52426
Frequently asked questions
What is CVE-2023-44487?
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.
Is CVE-2023-44487 actively exploited?
Yes. CVE-2023-44487 is on the CISA Known Exploited Vulnerabilities (KEV) catalog, meaning it has been confirmed as actively exploited in the wild. CISA requires federal agencies to patch by 10/31/2023.
What is the CVSS score for CVE-2023-44487?
CVE-2023-44487 has a CVSS v3 base score of 7.5 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
Is CVE-2023-44487 affecting your environment?
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