CVE-2020-3566
Cisco IOS XR Software DVMRP Memory Exhaustion Vulnerability
- 대응 우선순위
- 최우선
- CVSS
- 8.6
- EPSS
- 3.63% 백분위 88.1% · 2026.06.27 기준
- CISA KEV
- 등록
- 조치 기한
- 2022.05.03
- 공개일
- 2020.08.30
CISA KEV에 등록된 실제 악용 확인 취약점
A vulnerability in the Distance Vector Multicast Routing Protocol (DVMRP) feature of Cisco IOS XR Software could allow an unauthenticated, remote attacker to exhaust process memory of an affected device. The vulnerability is due to insufficient queue management for Internet Group Management Protocol (IGMP) packets. An attacker could exploit this vulnerability by sending crafted IGMP traffic to an affected device. A successful exploit could allow the attacker to cause memory exhaustion, resulting in instability of other processes. These processes may include, but are not limited to, interior...
공급사 Cisco
제품 IOS XR
영향 버전 n/a, 6.4.2
수정 버전 공식 출처에서 확인 필요
Apply updates per vendor instructions.
조치 기한: 2022.05.03CVSS 벡터 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
CWE CWE-400, CWE-770
KEV 등록일 2021.11.03
랜섬웨어 캠페인 사용 미확인
CISA 비고 https://nvd.nist.gov/vuln/detail/CVE-2020-3566
EPSS 데이터 기준일 2026.06.27