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CVE-2026-40535

DiskStation Manager (DSM) · path traversal

CVSS 3.1 6.5 MEDIUMCheck source for fixed versionsKEV status unknown

Original advisory

cve-program · CVE-2026-40535

Published

An improper limitation of a pathname to a restricted directory ('path traversal') vulnerability in Desktop API in Synology DiskStation Manager (DSM) before 7.2.1-69057-10, 7.2.2-72806-7 and 7.3.2-86009-2 allows remote attackers to write limited files and conduct limited denial-of-service attacks.

Read the publisher's advisory

Affected versions, risk and source history

cve-program · CVE-2026-40535

Published

DiskStation Manager (DSM)

Vendor product

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Synology",
                    "product": "DiskStation Manager (DSM)",
                    "versions": [
                        {
                            "version": "7.3",
                            "status": "affected",
                            "lessThan": "7.3.2-86009-2",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.2.2",
                            "status": "affected",
                            "lessThan": "7.2.2-72806-7",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.2.1",
                            "status": "affected",
                            "lessThan": "7.2.1-69057-10",
                            "versionType": "semver"
                        },
                        {
                            "version": "0",
                            "status": "unknown",
                            "lessThan": "7.2.1",
                            "versionType": "semver"
                        }
                    ],
                    "defaultStatus": "affected"
                }

Original source record · Cite this exact observation · Complete original publisher JSON