Skip to main content
CVE-2026-18633VulnerabilityPublished

Synology DiskStation Manager (DSM) · Access of Uninitialized Pointer Vulnerability

Source GCVE Database

0
Compare
Authoritative record:CVE-2026-18633· High 7.5

Not known to be exploited · CVSS 7.5 High · fixed in 7.3.2 : patch DiskStation Manager (DSM) soon.

Data as of 12 Nov 2026, 07:17 UTC

CVSS 3.1 base score
7.5High
How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none
CVSS scores by source
CNA (synology)CVSS 3.17.5
Patch
Available – fixed in 7.3.2
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 12 Nov 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 11 Nov 2026.

What to do

Affected software

ProductAffectedFixed in
SynologyDiskStation Manager (DSM)Affected
  • >=7.4.1 <7.4.1-90080-1
  • >=7.3.2 <7.3.2-86009-5
Fixed in–

AI-suggested

A fix is available in Synology DSM versions 7.3.2-86009-5 and 7.4.1-90080-1. Users should upgrade to these or later versions to remediate this vulnerability. No additional mitigations are specified.

Description

An uninitialized pointer vulnerability exists in the nfsd component of Synology DiskStation Manager (DSM) versions before 7.3.2-86009-5 and 7.4.1-90080-1. This flaw allows remote attackers to cause a denial-of-service (DoS) condition by exploiting the improper handling of uninitialized pointers.

References

Community reviews

Loading reviews…