CVE-2023-44487
HTTP/2 Rapid Reset Attack Vulnerability
- 대응 우선순위
- 최우선
- CVSS
- 7.5
- EPSS
- 100.0% 백분위 100.0% · 2026.06.27 기준
- CISA KEV
- 등록
- 조치 기한
- 2023.10.31
- 공개일
- 2023.10.10
CISA KEV에 등록된 실제 악용 확인 취약점
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.
공급사 IETF
제품 HTTP/2
영향 버전 n/a, 2.0, 0, V3.1.5, >= 3.1.5, < 1.0, 1.0, < 3.0, < 1.1, < 1.57.0, < 4.1.100, 1.24.10, 1.25.9, 1.26.4, 1.27.0, < 9.4.53, >= 10.0.0 < 10.0.17, >= 11.0.0 < 11.0.17, >= 12.0.0 < 12.0.2, < 2.7.5
수정 버전 1.0, 3.0, 1.1, 1.57.0, 4.1.100, 9.4.53, 10.0.17, 11.0.17, 12.0.2, 2.7.5, 1.20.10, 1.21.3, 0.17.0, r29, 1.28.0, 1.56.3, 1.58.3, 6.0.23, 7.0.12, 2023-10-08
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
조치 기한: 2023.10.31CVSS 벡터 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE CWE-400
KEV 등록일 2023.10.10
랜섬웨어 캠페인 사용 미확인
CISA 비고 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
EPSS 데이터 기준일 2026.06.27