CVE-2023-45236 Predictable TCP ISNs in EDK II Network Package

2024-01-1616:10:38

CWE-200

TianoCore

www.cve.org

edk ii

network package

predictable tcp isns

vulnerability

unauthorized access

loss of confidentiality

CVSS3

5.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

LOW

Integrity Impact

NONE

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N

AI Score

8.3

Confidence

High

EPSS

0.001

Percentile

28.1%

JSON

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.

CNA Affected

[
  {
    "defaultStatus": "unaffected",
    "product": "edk2",
    "vendor": "TianoCore",
    "versions": [
      {
        "status": "affected",
        "version": "edk2-stable202308"
      }
    ]
  }
]