HIGH 8.4 Microsoft
CVE-2026-64456
hwrng: virtio: clamp device-reported used.len at copy_data()
Microsoft Security Update 2026-Jul: hwrng: virtio: clamp device-reported used.len at copy_data()
Affected Products
- azl3 kernel 6.6.144.1-1 on Azure Linux 3.0
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-64456
- https://nvd.nist.gov/vuln/detail/CVE-2026-64456
This high severity vulnerability with a CVSS score of 8.4 was published on 2026-07-14 via Microsoft. Affected: azl3 kernel 6.6.144.1-1 on Azure Linux 3.0.
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