HIGH 7.1 Microsoft
CVE-2026-57918
libnfs through 6.0.2 before 935b8db has an xid integer underflow in READ_IOVEC in rpc_read_from_socket in lib/socket.c during a connection to a crafted NFS server, when the expected pdu size exceeds the absolute pdu size from the xid/record-marker.
Microsoft Security Update 2026-Jun: libnfs through 6.0.2 before 935b8db has an xid integer underflow in READ_IOVEC in rpc_read_from_socket in lib/socket.c during a connection to a crafted NFS server, when the expected pdu size exceeds the absolute pdu size from the xid/record-marker.
Affected Products
- azl3 libnfs 5.0.2-2 on Azure Linux 3.0
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-57918
- https://nvd.nist.gov/vuln/detail/CVE-2026-57918
This high severity vulnerability with a CVSS score of 7.1 was published on 2026-06-09 via Microsoft. Affected: azl3 libnfs 5.0.2-2 on Azure Linux 3.0.
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