CVE-2026-40538

3.7 lowEPSS 0.4%

Low (3.7). EPSS 0.4% chance of exploitation in the next 30 days.

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.

Severity

CVSS 3.1

3.7 low

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

EPSS: 0.4% chance of exploitation in the next 30 days; higher than 31% of CVEs (scores of 2026-10-31)
CWE: CWE-307
Published: 2026-09-18
Modified: 2026-09-18
Record from: the NVD, synced 2026-10-19

References

https://www.synology.com/en-global/security/advisory/Synology_SA_26_06

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