Is there a public exploit for CVE-2026-18596?

No public exploit for CVE-2026-18596 was found in Exploit-DB, Metasploit, Nuclei templates or public proof-of-concept repositories. That is an absence of evidence rather than proof that none exists.

How severe is CVE-2026-18596?

CVE-2026-18596 scores CVSS 8.1 (v3.1), rated high.

What does CVE-2026-18596 affect?

CVE-2026-18596 affects Synology DiskStation Manager (DSM).

8.1 High

An authentication bypass using an alternate path or channel vulnerability in the OTP in Synology DiskStation Manager (DSM) before…

CVE-2026-18596

An authentication bypass using an alternate path or channel vulnerability in the OTP in Synology DiskStation Manager (DSM) before 7.3.2-86009-5 and 7.4.1-90080-1 allows remote attackers with valid user credentials to read or write arbitrary files and conduct denial-of-service attacks.

Assessment

CVSS: 8.1 (v3.1)
Severity: High
Known exploited: Not listed in CISA KEV
Exploit availability: Nothing found in Exploit-DB, Metasploit, Nuclei or public PoC repositories
Published: 12 November 2026
Last updated: 12 November 2026
Affected: Synology · DiskStation Manager (DSM)
Assigner: synology

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

At the source

EUVD (ENISA)

References

https://www.synology.com/en-global/security/advisory/Synology_SA_26_18

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