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CVE-2026-20293

CVE

Threat entity extracted from intelligence sources

Frequency
1
occurrences
First Seen
September 9, 2026
Last Seen
September 9, 2026
API
Exploited in Wild
—
Ransomware Use
—
Public Exploits
—
Attack Vector
—

Vulnerability Overview

Exploitation Activity

Exploitation Intelligence

A critical vulnerability (CVE-2026-20293) in Cisco UCS Servers and UCS-based appliances allows an unauthenticated attacker with physical access to bypass UEFI Secure Boot validation checks. This vulnerability arises from the UEFI Shell's memory write commands while Secure Boot is enabled. Attackers...

Public Exploits

Checking GitHub for proof-of-concept code…