CVE-2026-81558

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-81558
StatePUBLISHED
Assignersynology
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-11-12 04:17:20 UTC
Updated2026-11-12 18:50:59 UTC
DescriptionA missing authorization vulnerability in the SocketIo API in Synology DiskStation Manager (DSM) before 7.3.2-86009-5 and 7.4.1-90080-1 allows remote authenticated users to write specific files.

Risk And Classification

Primary CVSS: v3.1 4.3 MEDIUM from [email protected]

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Problem Types: CWE-862 | CWE-862 Missing Authorization

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary4.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
3.1CNACVSS4.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
None

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Synology DiskStation Manager DSM affected 7.4.1 7.4.1-90080-1 semver Not specified
CNA Synology DiskStation Manager DSM affected 7.3.2 7.3.2-86009-5 semver Not specified
CNA Synology DiskStation Manager DSM unknown 7.3.2 semver Not specified

References

ReferenceSourceLinkTags
www.synology.com/en-global/security/advisory/Synology_SA_26_18 [email protected] www.synology.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Lubin Leclanche (en)

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