CVE-2023-44487

CISA KEV
ACT NOW Priority: 0.00 BB Relevance: 10/100
Published: N/A Modified: N/A First seen: 2026-10-29 Status: pending_score

Description

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

CISA Known Exploited Vulnerability

Vendor / Product IETF — HTTP/2
Date Added 2023-10-10
Remediation Due 2023-10-31
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

Weakness Classification (1)

Affected Software (304)

Showing 30 of 304 entries

References & Advisories (173)

Showing 25 of 173 references

Bug Bounty Relevance

10 / 100
✓ Known exploited (KEV)
✓ High exploitation probability

CVSS Score

Unscored

EPSS — Exploitation Probability

100.00%
Raw Score 0.999990
Percentile 100.0%
Date 2026-10-28

Intelligence Sources

kev ref →