CVE-2026-57918: Sahlberg Libnfs

High severity, CVSS 7.1. EPSS: 0.3% chance of exploitation in the next 30 days.

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

• Sahlberg Libnfs

Published 2026-06-26. Last modified 2026-06-26.