MEDIUM 5.9 Microsoft
CVE-2026-28388
NULL Pointer Dereference When Processing a Delta CRL
Microsoft Security Update 2026-Apr: NULL Pointer Dereference When Processing a Delta CRL
Affected Products
- azl3 openssl 3.3.5-4 on Azure Linux 3.0
- cbl2 edk2 20230301gitf80f052277c8-47 on CBL-Mariner 2.0
- cbl2 hvloader 1.0.1-18 on CBL-Mariner 2.0
- cbl2 edk2 20230301gitf80f052277c8-47 on CBL Mariner 2.0
- cbl2 hvloader 1.0.1-18 on CBL Mariner 2.0
- cbl2 openssl 1.1.1k-39 on CBL Mariner 2.0
- azl3 nodejs24 24.13.0-3 on Azure Linux 3.0
- azl3 qemu 9.1.0-1 on Azure Linux 3.0
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-28388
- https://nvd.nist.gov/vuln/detail/CVE-2026-28388
This medium severity vulnerability with a CVSS score of 5.9 was published on 2026-04-14 via Microsoft. Affected: azl3 openssl 3.3.5-4 on Azure Linux 3.0, cbl2 edk2 20230301gitf80f052277c8-47 on CBL-Mariner 2.0, cbl2 hvloader 1.0.1-18 on CBL-Mariner 2.0 and 5 more.
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