HIGH 7.5 Microsoft
CVE-2026-28389
Possible NULL Dereference When Processing CMS KeyAgreeRecipientInfo
Microsoft Security Update 2026-Apr: Possible NULL Dereference When Processing CMS KeyAgreeRecipientInfo
Affected Products
- azl3 openssl 3.3.5-4 on Azure Linux 3.0
- azl3 cloud-hypervisor 48.0.246-4 on Azure Linux 3.0
- azl3 edk2 20240524git3e722403cd16-15 on Azure Linux 3.0
- azl3 nodejs24 24.13.0-3 on Azure Linux 3.0
- 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
- cbl2 openssl 1.1.1k-39 on CBL Mariner 2.0
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-28389
- https://nvd.nist.gov/vuln/detail/CVE-2026-28389
This high severity vulnerability with a CVSS score of 7.5 was published on 2026-04-14 via Microsoft. Affected: azl3 openssl 3.3.5-4 on Azure Linux 3.0, azl3 cloud-hypervisor 48.0.246-4 on Azure Linux 3.0, azl3 edk2 20240524git3e722403cd16-15 on Azure Linux 3.0 and 5 more.
vulnfeed aggregates 14156 vulnerabilities from NVD, CISA KEV,
Ubuntu, Debian, Red Hat, Kubernetes, Exploit-DB, OSS-Security, GitHub and OpenStack — updated every 4 hours.