CVE-2026-40538
Low
Description
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.
SeverityLow
CVSS3.7
Exploit probability—
ProductDiskStation Manager (DSM)
PublishedSep 18, 2026
First seenSep 18, 2026
Weakness typeCWE-307CWE-307
How to fix
Update
- Synology DiskStation Manager (DSM)7.3.2-86009-2, 7.2.2-72806-7, 7.2.1-69057-10 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Synology DiskStation Manager (DSM) | 7.3.2 ≤ v < 7.3.2-86009-2, 7.2.2 ≤ v < 7.2.2-72806-7, 7.2.1 ≤ v < 7.2.1-69057-10 | 7.3.2-86009-2, 7.2.2-72806-7, 7.2.1-69057-10 |
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