CVE-2026-20301

Katalog CVE

CVSS 8.6 · High EPSS 0,57%

Kerentanan Unchecked Input for Loop Condition pada cisco ios. Skor CVSS 3.1 8.6 (High) menurut cisco.com.

Deskripsi (NVD)

A vulnerability in the Extensible Messaging Client Protocol (XMCP), also referred to as the External Client protocol, of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to improper handling of malformed XMCP packets. An attacker could exploit this vulnerability by sending a malformed XMCP packet to an affected device. A successful exploit could allow the attacker to cause the affected device to reload unexpectedly, resulting in a DoS condition. The attacker does not need the XMCP client username to exploit this vulnerability.

Rincian

Terbit di NVD

5 Agustus 2026

Terakhir diubah

17 September 2026

Status NVD

Analyzed

CVSS 3.1

8.6 (High), sumber cisco.com
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-606: Unchecked Input for Loop Condition

EPSS (30 hari)

0,57% peluang dieksploitasi; lebih tinggi dari 45,8% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD. Ditampilkan 60 dari 427 konfigurasi; daftar lengkap ada di NVD.

Referensi dan perbaikan

• https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ios-xmcp-thbAr34t mitigasi · advisory vendor