How severe is CVE-2025-13392?

CVE-2025-13392 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2025-13392 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (41st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-13392?

CVE-2025-13392 affects Synology Diskstation Manager. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-13392?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2025-13392 have an EU (EUVD) identifier?

Yes. CVE-2025-13392 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-209956.

When was CVE-2025-13392 published?

CVE-2025-13392 was published on 2026-05-27 and last updated on 2026-06-17.

CVE-2025-13392

CVE-2025-13392 is a high-severity vulnerability in Synology Diskstation Manager with a CVSS 3.x base score of 8.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-754.

Key facts

Severity: High (CVSS 3.x base score 8.1)
EPSS exploit prediction: 1% (41st percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-209956
Weakness: CWE-754
Affected product: Synology Diskstation Manager
Published: 2026-05-27
Last modified: 2026-06-17

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).

Frequently asked questions

What is 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 affected) allows remote attackers to bypass authentication with prior knowledge of the distinguished name (DN).
How severe is CVE-2025-13392?: CVE-2025-13392 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2025-13392 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (41st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-13392?: CVE-2025-13392 affects Synology Diskstation Manager. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-13392?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2025-13392 have an EU (EUVD) identifier?: Yes. CVE-2025-13392 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-209956.
When was CVE-2025-13392 published?: CVE-2025-13392 was published on 2026-05-27 and last updated on 2026-06-17.

References

https://www.synology.com/en-global/security/advisory/Synology_SA_25_14

Affected products (1)

cpe:2.3:o:synology:diskstation_manager:*:*:*:*:*:*:*:*

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