CVE-2023-45233HighMicrosoft CVSS 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Microsoft security update for CVE-2023-45233

Published
May 31, 2026
Last Modified
—

🔗 CVE IDs covered (1)

CVE-2023-45233 →

📋 Microsoft's advisory

EchelonGraph does not copy Microsoft's advisory page: its FAQ and remediation text are not shown here. Read the advisory on https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-45233. This page also shows what EchelonGraph holds for CVE-2023-45233, with the description from its CVE record, which the CVE Numbering Authority that assigned the CVE wrote: for a CVE Microsoft assigned, often in the words of Microsoft's own advisory.

🎯 Affected products8

  • azl3 edk2 20230301gitf80f052277c8-37 on Azure Linux 3.0
  • azl3 edk2 20240223gitedc6681206c1-1 on Azure Linux 3.0
  • cbl2 edk2 20230301gitf80f052277c8-40 on CBL Mariner 2.0
  • cbl2 edk2 20230301gitf80f052277c8-41 on CBL Mariner 2.0
  • cbl2 edk2 20230301gitf80f052277c8-41 on CBL-Mariner 2.0
  • cbl2 hvloader 1.0.1-11 on CBL Mariner 2.0
  • cbl2 hvloader 1.0.1-11 on CBL-Mariner 2.0
  • cbl2 hvloader 1.0.1-9 on CBL Mariner 2.0

✅ Updates Microsoft lists: 4 updates

4 rows: one per KB article or update, update type and fixed build. Their details are on Microsoft's advisory.

KB articleUpdateFixed build
—Security Update1.0.1-9
—Security Update20230301gitf80f052277c8-40
—Security Update20240223gitedc6681206c1-1
—Security Update1.0.1-3

🧭 EchelonGraph on CVE-2023-45233

EchelonGraph score
7.5 HIGH
CISA KEV
Not listed
Fix status
A fix is available — apply it.

Description from the CVE record (CVE.org), as published by its numbering authority

EDK2's Network Package is susceptible to an infinite lop vulnerability when parsing a PadN option in the Destination Options header of IPv6. This vulnerability can be exploited by an attacker to gain unauthorized access and potentially lead to a loss of Availability.

Published by TianoCore.org, the CVE Numbering Authority that assigned CVE-2023-45233, in its CVE record at CVE.org; reused under the CVE Program's Terms of Use (its licence and MITRE's copyright notice are in our Terms of Service).

🔗 References (2)