Microsoft security update for CVE-2026-42250 — azl3
🔗 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-2026-42250. This page also shows what EchelonGraph holds for CVE-2026-42250, 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 products5
- azl3 bzip2 1.0.8-1 on Azure Linux 3.0
- azl3 bzip2 1.0.8-2 on Azure Linux 3.0
- azl3 kata-containers-cc 3.15.0.aks0-12 on Azure Linux 3.0
- azl3 kata-containers-cc 3.15.0.aks0-15 on Azure Linux 3.0
- azl3 kata-containers-cc 3.15.0.aks0-9 on Azure Linux 3.0
✅ Updates Microsoft lists: 2 updates
2 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 | 1.0.8-2 |
| — | Security Update | 3.15.0.aks0-15 |
🧭 EchelonGraph on CVE-2026-42250
- EchelonGraph score
- 4.8 MEDIUM
- 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
bzip2 contains an off‑by‑one error in the bzip2recover utility. When processing a specially crafted file, the application performs an out‑of‑bounds write to a global buffer, resulting in memory corruption and a crash (denial of service). This issue was fixed in bzip2 patch 35d122a3df8b0cc4082a4d89fdc6ee99f375fe67
Published by CERT.PL, the CVE Numbering Authority that assigned CVE-2026-42250, 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).