CVE-2023-45236: Tianocore EDK2

High severity, CVSS 7.5. EPSS: 1% chance of exploitation in the next 30 days.

EDK2's Network Package is susceptible to a predictable TCP Initial Sequence Number. This vulnerability can be exploited by an attacker to gain unauthorized access and potentially lead to a loss of Confidentiality.

Affected products

• Tianocore EDK2: up to and including 202311

Published 2024-01-16. Last modified 2026-06-17.