CVE-2023-20187

Katalog CVE

CVSS 7.5 · High EPSS 0,88%

Kerentanan Use of Out-of-range Pointer Offset pada cisco ios xe. Skor CVSS 3.1 7.5 (High) menurut NVD.

Deskripsi (NVD)

A vulnerability in the Multicast Leaf Recycle Elimination (mLRE) feature of Cisco IOS XE Software for Cisco ASR 1000 Series Aggregation Services Routers could allow an unauthenticated, remote attacker to cause the affected device to reload, resulting in a denial of service (DoS) condition. This vulnerability is due to incorrect handling of certain IPv6 multicast packets when they are fanned out more than seven times on an affected device. An attacker could exploit this vulnerability by sending a specific IPv6 multicast or IPv6 multicast VPN (MVPNv6) packet through the affected device. A successful exploit could allow the attacker to cause a reload of the affected device, resulting in a DoS condition.

Rincian

Terbit di NVD

27 September 2023

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-823: Use of Out-of-range Pointer Offset

EPSS (30 hari)

0,88% peluang dieksploitasi; lebih tinggi dari 57,9% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD. Ditampilkan 60 dari 201 konfigurasi; daftar lengkap ada di NVD.

Referensi dan perbaikan

• https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-mlre-H93FswRz mitigasi · advisory vendor