CVE-2026-18633 · Infrastructure
NO FIX YET · SEE WHAT TO DO
Synology DiskStation Manager has an access of an uninitialized pointer in its nfsd NFS daemon. A remote attacker can crash the service and cause a denial of service.
first public Nov 12, 2026 · 1 source
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Synology DSM installations running a version before 7.3.2-86009-5 or 7.4.1-90080-1 that expose the nfsd NFS service to the network are affected. Systems without NFS enabled, or not reachable from the network, are less exposed; the sources do not say more.
Not affected if nfs-disabled, not-network-reachable
Who cares dsm, nas, nfs, self-hosted, synology
cat /etc/VERSION on the NAS).7.3.2-86009-5 or later on the 7.3 branch.7.4.1-90080-1 or later on the 7.4 branch.An access of uninitialized pointer vulnerability in the nfsd in Synology DiskStation Manager (DSM) before 7.3.2-86009-5 and 7.4.1-90080-1 allows remote attackers to conduct denial-of-service attacks.
This page as .md · .json · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
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