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PatchSiren cyber security CVE debrief

CVE-2026-40533 Synology CVE debrief

CVE-2026-40533 is an exposure of sensitive information through data queries vulnerability in Desktop API in Synology DiskStation Manager (DSM). This vulnerability allows remote attackers to obtain non-sensitive information. Defenders responsible for Synology DiskStation Manager (DSM) deployments should assess exposure and verify inventory to determine potential impact. The CVE record and NVD entry provide limited information about the vulnerability. Further verification is required to determine the full scope of affected versions and potential impact.

Vendor
Synology
Product
DiskStation Manager (DSM)
CVSS
MEDIUM 5.3
CISA KEV
Not listed in stored evidence
Original CVE published
2026-09-18
Original CVE updated
2026-09-18
Advisory published
2026-09-18
Advisory updated
2026-09-18

Who should care

Defenders responsible for Synology DiskStation Manager (DSM) deployments should assess exposure and verify inventory to determine potential impact.

Why it matters

CVE-2026-40533 is an exposure of sensitive information through data queries vulnerability in Desktop API in Synology DiskStation Manager (DSM). Defenders responsible for Synology DiskStation Manager (DSM) deployments should assess exposure and verify inventory to determine potential impact. The CVE record and NVD entry provide limited information about the vulnerability. Further verification is required to determine the full scope of affected versions and potential impact.

  • Potential information disclosure requires verification from official sources
  • Defenders should assess exposure and verify inventory for Synology DiskStation Manager (DSM) versions before 7.2.1-69057-10, 7.2.2-72806-7, and 7.3.2-86009-2

Technical summary

CVE-2026-40533 is an exposure of sensitive information through data queries vulnerability in Desktop API in Synology DiskStation Manager (DSM) versions before 7.2.1-69057-10, 7.2.2-72806-7, and 7.3.2-86009-2. This vulnerability allows remote attackers to obtain non-sensitive information. Defenders should assess exposure and verify inventory for Synology DiskStation Manager (DSM) versions before 7.2.1-69057-10, 7.2.2-72806-7, and 7.3.2-86009-2.

Defensive priority

Assess exposure and verify inventory for Synology DiskStation Manager (DSM) versions before 7.2.1-69057-10, 7.2.2-72806-7, and 7.3.2-86009-2.

Recommended defensive actions

  • Assess exposure and verify inventory for Synology DiskStation Manager (DSM) versions before 7.2.1-69057-10, 7.2.2-72806-7, and 7.3.2-86009-2
  • Verify vendor remediation and compensating controls
  • Monitor for potential information disclosure

Evidence notes

The CVE record and NVD entry provide limited information about the vulnerability. Further verification is required to determine the full scope of affected versions and potential impact.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-40533 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-40533

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-40533 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-40533

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.