CRITICAL 9.8 Microsoft
CVE-2025-40244
hfsplus: fix KMSAN uninit-value issue in __hfsplus_ext_cache_extent()
Microsoft Security Update 2025-Dec: hfsplus: fix KMSAN uninit-value issue in __hfsplus_ext_cache_extent()
Affected Products
- azl3 kernel 6.6.112.1-2 on Azure Linux 3.0
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-40244
- https://nvd.nist.gov/vuln/detail/CVE-2025-40244
This critical severity vulnerability with a CVSS score of 9.8 was published on 2025-12-09 via Microsoft. Affected: azl3 kernel 6.6.112.1-2 on Azure Linux 3.0.
Risk Timeline
CVE Disclosed2025-12-09 · 293 days ago
Remediation Resources
Official Advisory
msrc.microsoft.com/update-guide/vulnerability/CVE-2025-40244NVD / MITRE
nvd.nist.gov/vuln/detail/CVE-2025-40244Related Vulnerabilities
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| CVE-2026-78030 | DBI versions before 1.653 for Perl load arbitrary modules via unvalidated dbm_ty | CRITICAL | 9.8 |
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