CVE-2023-45237

Advisory lineage Upstream: 0 Downstream: 13
Modified
Published: 16 Jan 2024, 16:11
Last modified:04 Nov 2025, 18:17

Vulnerability Summary

Overall Risk (default)
medium
30/100
CVSS Score
7.5 HIGH
v3.1 (nvd)
EPSS Score
0.41% LOW
0% probability +0.03%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

16 Jan 2024, 16:11
Published
Vulnerability first disclosed
04 Nov 2025, 18:17
Last Modified
Vulnerability information updated

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.

CVSS Metrics

  • v3.1•MEDIUM•Score: 5.3CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
  • v3.1•HIGH•Score: 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

EPSS Trends

Current EPSS score: 0.41%• Percentile: 62%

Techniques & Countermeasures

  • CWE-338•Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG)

    The product uses a Pseudo-Random Number Generator (PRNG) in a security context, but the PRNG's algorithm is not cryptographically strong.

Affected Systems

  • tianocore•edk2

    edk2-stable202308 | ≤ 202311

References (4)