CVE-2026-40538An improper restriction of excessive authentication attempts vulnerability in Auto block in Synology DiskStation Manager (DSM) before 7.2.1-69057-10, 7.2.2-72806-7 and 7.3.2-86009-2 allows remote att…
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It affects Synology DiskStation Manager (DSM). Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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An improper restriction of excessive authentication attempts vulnerability in Auto block in Synology DiskStation Manager (DSM) before 7.2.1-69057-10, 7.2.2-72806-7 and 7.3.2-86009-2 allows remote attackers to read limited files via brute-force attacks.
- CVSS
- 3.7 LOW (v3.1, CNA)CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
- Weakness (CWE)
- CWE-307
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- synology
- NVD analysis
- Awaiting Analysis
- Record last updated
- Sep 18, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Synology DiskStation Manager (DSM) synology:diskstation_manager_dsm (from the name) | from 7.3.2 before 7.3.2-86009-2; from 7.2.2 before 7.2.2-72806-7; from 7.2.1 before 7.2.1-69057-10; before 7.2.1 status unknown | CNA record |
References
- https://www.synology.com/en-global/security/advisory/Synology_SA_26_06
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.