HIGH 7.8 Microsoft
CVE-2025-21927
nvme-tcp: fix potential memory corruption in nvme_tcp_recv_pdu()
Microsoft Security Update 2026-Aug: nvme-tcp: fix potential memory corruption in nvme_tcp_recv_pdu()
Affected Products
- cbl2 kernel 5.15.186.1-1 on CBL Mariner 2.0
- azl3 kernel 6.6.117.1-1 on Azure Linux 3.0
- azl3 kernel 6.6.119.3-3 on Azure Linux 3.0
- azl3 kernel 6.6.126.1-1 on Azure Linux 3.0
- azl3 kernel 6.6.130.1-3 on Azure Linux 3.0
- cbl2 kernel 5.15.202.1-1 on CBL Mariner 2.0
- azl3 kernel 6.6.134.1-2 on Azure Linux 3.0
- azl3 kernel 6.6.145.2-1 on Azure Linux 3.0
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-21927
- https://nvd.nist.gov/vuln/detail/CVE-2025-21927
This high severity vulnerability with a CVSS score of 7.8 was published on 2026-08-06 via Microsoft. Affected: cbl2 kernel 5.15.186.1-1 on CBL Mariner 2.0, azl3 kernel 6.6.117.1-1 on Azure Linux 3.0, azl3 kernel 6.6.119.3-3 on Azure Linux 3.0 and 5 more.
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