CVE-2026-20293

Vendor

Cisco

Product

GRUB / Secure Boot

CVSS

7.1

EPSS

0.002 (p8)

Exposure class

Operating system

Every item in the archive that references this CVE, highest rank first. Headlines open the publisher.

1. 30
   Cisco advisory Cisco PSIRT 18d ago

   Cisco UCS and UCS-Based Appliances UEFI Shell Secure Boot Bypass Vulnerability

   A vulnerability in the Unified Extensible Firmware Interface (UEFI) Shell implementation of Cisco UCS Servers and UCS-based appliances could allow an authenticated attacker with valid credentials for a user account with the role…

   Fix available CVE-2026-20293 Cisco
2. 25
   Cisco advisory Cisco PSIRT 8 Sep 2026

   Cisco UCS and UCS-Based Appliances UEFI Shell Secure Boot Bypass Vulnerability

   A vulnerability in the Unified Extensible Firmware Interface (UEFI) Shell implementation of Cisco UCS Servers and UCS-based appliances could allow an authenticated attacker with valid credentials for a user account with the role…

   CVE-2026-20293 Cisco
3. 21
   CVE NVD 8 Sep 2026

   A vulnerability in the Unified Extensible Firmware Interface (UEFI) Shell implementation of Cisco UCS Servers and UCS-based appliances could allow an…

   A vulnerability in the Unified Extensible Firmware Interface (UEFI) Shell implementation of Cisco UCS Servers and UCS-based appliances could allow an authenticated attacker with valid credentials for a user account with the role…

   CVSS 7.1 CVE-2026-20293 Cisco