CVE-2026-28388: NULL Pointer Dereference When Processing a Delta CRL
Overview
- Severity
- Medium (CVSS 5.9)
- CVSS Vector
- CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
- Exploit Status
- Not Exploited
- Patch Tuesday
- 2026-Apr
- Released
- 2026-04-09
- Last Updated
- 2026-04-30
- EPSS Score
- 0.04% (percentile: 13.9%)
Affected Products (18)
Open Source Software
- azl3 openssl 3.3.5-4 on Azure Linux 3.0
- azl3 nodejs24 24.14.1-2 on Azure Linux 3.0
- azl3 qemu 9.1.0-5 on Azure Linux 3.0
- azl3 rust 1.75.0-28 on Azure Linux 3.0
- azl3 rust 1.90.0-7 on Azure Linux 3.0
- cbl2 cloud-hypervisor 32.0-7 on CBL Mariner 2.0
- cbl2 cloud-hypervisor-cvm 38.0.72.2-5 on CBL Mariner 2.0
- azl3 cloud-hypervisor 48.0.246-4 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 openssl 1.1.1k-39 on CBL Mariner 2.0
- cbl2 qemu 6.2.0-27 on CBL Mariner 2.0
- azl3 nodejs24 24.13.0-3 on Azure Linux 3.0
- cbl2 rust 1.72.0-15 on CBL Mariner 2.0
- azl3 qemu 9.1.0-1 on Azure Linux 3.0
- azl3 rust 1.75.0-27 on Azure Linux 3.0
- azl3 rust 1.90.0-6 on Azure Linux 3.0
- azl3 nodejs24 24.14.1-1 on Azure Linux 3.0
Revision History
- 2026-04-09: Information published.
- 2026-04-10: Information published.
- 2026-04-11: Information published.
- 2026-04-14: Information published.
- 2026-04-15: Information published.
- 2026-04-23: Information published.
- 2026-04-29: Information published.
- 2026-04-30: Information published.