CVE-2019-1736

Katalog CVE

CVSS 6.6 · Medium EPSS 0,25%

Kerentanan Improper Verification of Cryptographic Signature pada cisco fmc1000-k9 bios, cisco fmc1000-k9 firmware +20 lainnya. Skor CVSS 3.1 6.6 (Medium) menurut NVD.

Deskripsi (NVD)

A vulnerability in the firmware of the Cisco UCS C-Series Rack Servers could allow an authenticated, physical attacker to bypass Unified Extensible Firmware Interface (UEFI) Secure Boot validation checks and load a compromised software image on an affected device. The vulnerability is due to improper validation of the server firmware upgrade images. An attacker could exploit this vulnerability by installing a server firmware version that would allow the attacker to disable UEFI Secure Boot. A successful exploit could allow the attacker to bypass the signature validation checks that are done by UEFI Secure Boot technology and load a compromised software image on the affected device. A compromised software image is any software image that has not been digitally signed by Cisco.

Rincian

Terbit di NVD

23 September 2020

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

6.6 (Medium), sumber NVD
CVSS:3.1/AV:P/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

EPSS (30 hari)

0,25% peluang dieksploitasi; lebih tinggi dari 14,7% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20200219-ucs-boot-bypass patch · advisory vendor