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CVE-2026-89098

5.5 medium SSVC exploitation: poc Published
NVD · CVE.org

A flaw was found in nfs-utils. The fsidd daemon improperly handles input received over its local domain socket by relying on program assertions to verify command arguments. A local user can exploit this vulnerability by sending a malformed request lacking the required arguments to trigger an assertion failure. This causes the daemon to crash, resulting in a Denial of Service (DoS) for filesystem identifier lookup services until restarted.

Fix

Microsoft's update · Moderate

  • Release Notes — azl3 nfs-utils 2.6.4-4 on Azure Linux 3.0 · build 2.6.4-5

From the 2026-Oct release note of Microsoft's Security Update Guide, revised 2026-10-30.

Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.

Change history 2

  1. StatusAwaiting Analysis → PublishedNVD modified 2026-10-19 14:19
  2. First seenCVSS 5.5NVD modified 2026-10-19 15:17

Affected (CPE criteria) 0

NVD has not attached CPE configurations yet.

References 3