Critical severity · published May 27, 2026
CVE-2025-13392
Improper check for unusual or exceptional conditions vulnerability in SSO in Synology DiskStation Manager (DSM) before 7.2.2-72806-5 and 7.3.1-86003-1 (7.2.1-69057 is not…
9.8
CVSS
0.5%
EPSS
No
On KEV
Description
Improper check for unusual or exceptional conditions vulnerability in SSO in Synology DiskStation Manager (DSM) before 7.2.2-72806-5 and 7.3.1-86003-1 (7.2.1-69057 is not affected) allows remote attackers to bypass authentication with prior knowledge of the distinguished name (DN).
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 45% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DM
DiskStation Manager (DSM) · Synology
7.3 before 7.3.1-86003-1; 7.2.2 before 7.2.2-72806-5 · source: vendor
DM
Diskstation Manager · Synology
7.2.2 before 7.2.2-72806-5; 7.3 through 7.3.1-86003-1 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-13392
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-13392
Vendor Advisory
https://www.synology.com/en-global/security/advisory/Synology_SA_25_14
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