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Status published
Medium
CVE-2023-45236
Predictable TCP ISNs in EDK II Network Package
Vulnerability Description
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.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:
- Quarkslab Vulnerability Reports Team
- Doug Flick
References
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Affected Vendor
TianoCore
View all reports →Affected Software
edk2
Vulnerable Versions:
edk2-stable202308
Timeline
Official Publish:
January 16th, 2024
Last Modified:
November 4th, 2025
Added to House:
July 22nd, 2026
CVSS Vectors
V3:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N