An improper encoding or escaping of output vulnerability in SCGI in Synology DiskStation Manager (DSM) before 7.2.1-69057-12, 7.2.2-72806-9, 7.3.2-86009-4 and 7.4-90075 allows remote attackers to read or write arbitrary files and conduct denial-of-service attacks.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Synology DiskStation Manager (DSM) affected
Version Status Constraints
7.4 affected < 7.4-90075
7.3.2 affected < 7.3.2-86009-4
7.2.2 affected < 7.2.2-72806-9
7.2.1 affected < 7.2.1-69057-12
0 unknown < 7.2.1

No data.

No data.

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Vendors Products
Synology Subscribe
Diskstation Manager Subscribe

Project Subscriptions

No data.

Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://www.synology.com/en-global/security/advisory/Synology_SA_26_13 cve-icon cve-icon
History

Sat, 19 Sep 2026 23:00:00 +0000

Type Values Removed Values Added
First Time appeared Synology
Synology diskstation Manager
Vendors & Products Synology
Synology diskstation Manager

Sat, 19 Sep 2026 20:30:00 +0000

Type Values Removed Values Added
Title Improper Encoding in SCGI Allows Remote File Read/Write and DoS in Synology DSM

Fri, 18 Sep 2026 21:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Fri, 18 Sep 2026 08:45:00 +0000

Type Values Removed Values Added
Description An improper encoding or escaping of output vulnerability in SCGI in Synology DiskStation Manager (DSM) before 7.2.1-69057-12, 7.2.2-72806-9, 7.3.2-86009-4 and 7.4-90075 allows remote attackers to read or write arbitrary files and conduct denial-of-service attacks.
Weaknesses CWE-116
References
Metrics cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: synology

Published:

Updated: 2026-09-18T19:14:16.588Z

Reserved: 2026-06-29T10:42:15.926Z

Link: CVE-2026-13684

cve-icon Vulnrichment

Updated: 2026-09-18T19:14:11.827Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-09-18T09:16:39.237

Modified: 2026-09-18T20:17:08.373

Link: CVE-2026-13684

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-19T22:29:56Z

Weaknesses