CVE-2025-13392: Improper check for unusual or exceptional conditions vulnerability in SSO in Synology DiskStation Manager (DSM

Q: How do I fix CVE-2025-13392?

diskstation manager: upgrade to 7.2.2-72806-5. Exact commands for each OS are on this page.

Q: Is CVE-2025-13392 being exploited?

CVE-2025-13392 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2025-13392 affect?

CVE-2025-13392 affects diskstation manager. Severity is high (CVSS 8.1). 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

Q: How urgent is CVE-2025-13392?

Priority 45/100. High severity; Remotely exploitable, no login, no user action

This month

HIGH 8.1REMOTEUPGRADE

CVE-2025-13392 is a high-severity flaw (CVSS 8.1) affecting diskstation manager. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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).

Why this priority

High severity
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	8.1 (High)
Attack vector	Network (remote)
Attack complexity	High
Privileges needed	None
User interaction	None
EPSS exploit chance	0.5% (top 55%)
CISA exploited list	No
Weakness	CWE-754
Published	2026-05-27
Last modified	2026-10-07

Publisher (CNA): Synology Inc. · Vendor: synology

Last updated 2026-10-07 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-05-27 09:16 UTCPublished CVE record published
2026-10-07 08:10 UTCUpdated Record last modified

synology diskstation manager UPGRADE

Affected: >= 7.2.2 and < 7.2.2-72806-5 · >= 7.3 and <= 7.3.1-86003-1

Fixed in: 7.2.2-72806-5

Safe to downgrade to: a release before 7.2.2

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2025-13392?

diskstation manager: upgrade to 7.2.2-72806-5. Exact commands for each OS are on this page.

Is CVE-2025-13392 being exploited?

CVE-2025-13392 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2025-13392 affect?

CVE-2025-13392 affects diskstation manager. Severity is high (CVSS 8.1). 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

How urgent is CVE-2025-13392?

Priority 45/100. High severity; Remotely exploitable, no login, no user action

Software pages

Synology vulnerabilities

References

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