Microsoft security update for CVE-2026-28389
🔗 CVE IDs covered (1)
📋 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-2026-28389. This page also shows what EchelonGraph holds for CVE-2026-28389, 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 products11
- azl3 cloud-hypervisor 48.0.246-4 on Azure Linux 3.0
- azl3 edk2 20240524git3e722403cd16-15 on Azure Linux 3.0
- azl3 edk2 20240524git3e722403cd16-16 on Azure Linux 3.0
- azl3 nodejs24 24.13.0-3 on Azure Linux 3.0
- azl3 nodejs24 24.14.1-1 on Azure Linux 3.0
- azl3 openssl 3.3.5-4 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
- cbl2 openssl 1.1.1k-39 on CBL-Mariner 2.0
✅ Updates Microsoft lists: 3 updates
3 rows: one per KB article or update, update type and fixed build. Their details are on Microsoft's advisory.
| KB article | Update | Fixed build |
|---|---|---|
| — | Security Update | 3.3.5-5 |
| — | Security Update | 20240524git3e722403cd16-16 |
| — | Security Update | 1.1.1k-40 |
🧭 EchelonGraph on CVE-2026-28389
- 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
Issue summary: During processing of a crafted CMS EnvelopedData message with KeyAgreeRecipientInfo a NULL pointer dereference can happen. Impact summary: Applications that process attacker-controlled CMS data may crash before authentication or cryptographic operations occur resulting in Denial of Service. When a CMS EnvelopedData message that uses KeyAgreeRecipientInfo is processed, the optional parameters field of KeyEncryptionAlgorithmIdentifier is examined without checking for its presence. This results in a NULL pointer dereference if the field is missing. Applications and services that call CMS_decrypt() on untrusted input (e.g., S/MIME processing or CMS-based protocols) are vulnerable. The FIPS modules in 3.6, 3.5, 3.4, 3.3 and 3.0 are not affected by this issue, as the affected code is outside the OpenSSL FIPS module boundary.
Published by OpenSSL Software Foundation, the CVE Numbering Authority that assigned CVE-2026-28389, 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).