CVE-2023-20236: cisco ios xr

csirt@kutim:~/threat-intel/cve/CVE-2023-20236

CVSS 7.8 · High EPSS 0,10%

Kerentanan Improper Verification of Cryptographic Signature pada cisco ios xr. Skor CVSS 3.1 7.8 (High) menurut NVD.

Deskripsi (NVD)

A vulnerability in the iPXE boot function of Cisco IOS XR software could allow an authenticated, local attacker to install an unverified software image on an affected device. This vulnerability is due to insufficient image verification. An attacker could exploit this vulnerability by manipulating the boot parameters for image verification during the iPXE boot process on an affected device. A successful exploit could allow the attacker to boot an unverified software image on the affected device.

Rincian

Terbit di NVD: 13 September 2023
Terakhir diubah: 17 Juni 2026
Status NVD: Modified
CVSS 3.1: 7.8 (High), sumber NVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H · uraikan di kalkulator
Jenis kelemahan (CWE): CWE-347: Improper Verification of Cryptographic Signature
CWE-345: Insufficient Verification of Data Authenticity
EPSS (30 hari): 0,10% peluang dieksploitasi; lebih tinggi dari 0,8% CVE lain

Produk dan versi terdampak

Vendor	Produk	Versi terdampak
cisco	ios xr	Semua versi sebelum 7.10.1

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxr-ipxe-sigbypass-py... advisory vendor

Sumber: NVD · CVE.org · EPSS. Halaman ini disusun otomatis dari data tersebut; pembaruan terakhir 5 Okt 2026, 20:10 WITA. Kalau sistem di Perangkat Daerah memakai produk ini dan butuh bantuan, laporkan lewat kanal pelaporan.