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    CVE-2026-40538

    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.

    Published:Sep 18, 2026
    Last Modified:Sep 19, 2026
    EPS:Sep 18, 2026
    EPSS Score:0.00249
    CVSS Score:3.7

    Affected Products

    Vendor
    Synology
    Product
    Diskstation Manager

    Exploits

    No exploit reference

    Related CVEs

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    CVE-2026-40533 (CVSS 5.3) — An exposure of sensitive information through data queries vulnerability in Desktop API in Synology DiskStation…
    CVE-2026-40537 (CVSS 4.3) — A server-side request forgery (SSRF) vulnerability in PersonMail API in Synology DiskStation Manager (DSM) bef…
    CVE-2026-40536 (CVSS 4.3) — An improper limitation of a pathname to a restricted directory ('path traversal') vulnerability in Audio API i…
    CVE-2026-40534 (CVSS 5.4) — An improper neutralization of input during web page generation ('cross-site scripting') vulnerability in Video…
    CVE-2026-40532 (CVSS 6.5) — A direct request ('forced browsing') vulnerability in Wallpaper Path in Synology DiskStation Manager (DSM) bef…
    CVE-2026-40531 (CVSS 4.3) — An integer overflow or wraparound vulnerability in File Operation in Synology DiskStation Manager (DSM) before…
    CVE-2026-4036 (CVSS 6.5) — An improper neutralization of special elements used in an SQL command ('SQL injection') vulnerability in Shari…
    CVE-2026-40530 (CVSS 8) — An improper neutralization of CRLF sequences ('CRLF injection') vulnerability in User API in Synology DiskStat…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High