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CVE-2023-45236
Predictable TCP ISNs in EDK II Network Package
Medium5.8EPSS 0.99%
- Published
- Updated
- Reserved
- Assigned by
- TianoCore
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.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| TianoCoreCNA (assigner) | 3.1 | Medium5.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N |
| NVDNVD · Modified | 3.1 | High7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
- EPSS (exploitation in 30 days)
- 0.99% · top 37% of all CVEs (7 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: yes · Technical impact: partial
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.8.
Weakness
Affected products
References (4)
- https://github.com/tianocore/edk2/security/advisories/GHSA-hc6x-cw6p-gj7h (opens in a new tab)x_transferred
- http://www.openwall.com/lists/oss-security/2024/01/16/2 (opens in a new tab)x_transferred
- https://security.netapp.com/advisory/ntap-20240307-0011/ (opens in a new tab)x_transferred
- https://www.kb.cert.org/vuls/id/132380 (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2023-45236)Record last updated .