CVE-2020-3566

Katalog CVE

CVSS 8.6 · High KEV · sudah dieksploitasi EPSS 3,7%

Kerentanan Uncontrolled Resource Consumption pada cisco ios xr. Skor CVSS 3.1 8.6 (High) menurut NVD. Masuk katalog KEV CISA pada 3 November 2021, artinya sudah terbukti dieksploitasi.

Deskripsi (NVD)

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 and exterior routing protocols. Cisco will release software updates that address this vulnerability.

Rincian

Terbit di NVD

29 Agustus 2020

Terakhir diubah

17 Juni 2026

Status NVD

Analyzed

CVSS 3.1

8.6 (High), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-400: Uncontrolled Resource Consumption
CWE-770: Allocation of Resources Without Limits or Throttling

EPSS (30 hari)

3,7% peluang dieksploitasi; lebih tinggi dari 89,5% CVE lain

Known Exploited Vulnerabilities (CISA)

Nama

Cisco IOS XR Software DVMRP Memory Exhaustion Vulnerability

Masuk KEV

3 November 2021

Tenggat CISA

3 Mei 2022 (untuk instansi federal AS)

Ransomware

Belum tercatat

Tindakan wajib

Apply updates per vendor instructions.

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxr-dvmrp-memexh-dSmpdvfz advisory vendor
• https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-3566 pemerintah AS