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CVE-2026-40536

An improper limitation of a pathname to a restricted directory ('path traversal') vulnerability in Audio 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 authenticated users to obtain non-sensitive information.

CVSS 3.1 · 4.3 Medium EPSS < 1% KEV · Not listed
Vendors
CVE-2026-40537

A server-side request forgery (SSRF) vulnerability in PersonMail 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 authenticated users to obtain non-sensitive information.

CVSS 3.1 · 4.3 Medium EPSS < 1% KEV · Not listed
Vendors
CVE-2026-40533

An exposure of sensitive information through data queries 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 obtain non-sensitive information.

CVSS 3.1 · 5.3 Medium EPSS < 1% KEV · Not listed
Vendors
CVE-2026-40535

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.

CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed
Vendors
CVE-2026-40538

An improper restriction of excessive authentication attempts vulnerability in Auto block 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 read limited files via brute-force attacks.

CVSS 3.1 · 3.7 Low EPSS < 1% KEV · Not listed
Vendors
CVE-2026-40539

An improper certificate validation vulnerability in Email API in Synology DiskStation Manager (DSM) before 7.2.1-69057-10, 7.2.2-72806-7 and 7.3.2-86009-2 allows man-in-the-middle attackers to read or write arbitrary files and conduct denial-of-service attacks.

CVSS 3.1 · 7.1 High EPSS < 1% KEV · Not listed
Vendors
CVE-2026-40541

An improper neutralization of input during web page generation ('Cross-site Scripting') vulnerability in extract domain in Synology Chat Server before 2.4.5-22148 allows remote authenticated users, via a UI interaction, to read or write arbitrary files and conduct denial-of-service attacks in DSM.

CVSS 3.1 · 9 Critical EPSS < 1% KEV · Not listed
Vendors
CVE-2026-9491

A server-ide request forgery (SSRF) vulnerability in webhook in Synology Chat Server before 2.4.5-22148 allows remote authenticated users to obtain non-sensitive information.

CVSS 3.1 · 4.3 Medium EPSS < 1% KEV · Not listed
Vendors
CVE-2026-9548

An improper neutralization of input during web page generation ('Cross-site Scripting') vulnerability in extract domain in Synology Chat Server before 2.4.5-22148 allows remote authenticated users, via a UI interaction, to read or write restricted files and conduct limited denial-of-service attacks in DSM.

CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed
Vendors
CVE-2026-4793

Local Permissions Misconfiguration Enabling Arbitrary File Read/Write and Installation Denial in Synology Assistant

An incorrect default permissions vulnerability in Synology Assistant before 7.0.7-50095 allows local users to read or write arbitrary files and conduct denial-of-service during installation.

CVSS 3.1 · 7.3 High EPSS < 1% KEV · Not listed
Products
CVE-2025-12686

Buffer Overflow in AdminCenter Enables Remote Code Execution in Synology BeeStation OS

Buffer copy without checking size of input ('Classic Buffer Overflow') vulnerability in AdminCenter in Synology BeeStation OS before 1.3.2-65648 allows remote attackers to execute arbitrary code via unspecified vectors.

CVSS 3.1 · 9.8 Critical EPSS 2.8% KEV · Not listed
Vendors
CVE-2022-3576

A vulnerability regarding out-of-bounds read is found in the session processing functionality of Out-of-Band (OOB) Management. This allows remote attackers to obtain sensitive information via unspecified vectors. The following models with Synology DiskStation Manager (DSM) versions before 7.1.1-42962-2 may be affected: DS3622xs+, FS3410, and HD6500.

CVSS 3.1 · 5.3 Medium EPSS 1.2% KEV · Not listed
Vendors
Products
CVE-2022-49036

Local Code Execution via Untrusted OpenSSL Configuration in Synology Active Backup for Business Recovery Media Creator

An inclusion of functionality from untrusted control sphere vulnerability in OpenSSL configuration in Synology Active Backup for Business Recovery Media Creator before 2.5.0-2081 allows local users to execute arbitrary code via unspecified vectors.

CVE-2024-47273

Path Traversal Allowing Write in Synology Hyper Backup

An improper limitation of a pathname to a restricted directory ('Path Traversal') vulnerability in Backup Task functionality in Synology Hyper Backup before 4.1.2-4036 allows remote authenticated users to write specific files via unspecified vectors.

CVSS 3.1 · 4.3 Medium EPSS < 1% KEV · Not listed
Vendors
Products
CVE-2024-47263

Path Traversal in Synology Hyper Backup Allows Admin Write Access

An improper limitation of a pathname to a restricted directory ('Path Traversal') vulnerability in Backup.Repository webapi component in Synology Hyper Backup before 4.1.2-4036 allows remote authenticated users with administrator privileges to write specific files containing non-sensitive information via unspecified vectors.

CVSS 3.1 · 4.1 Medium EPSS < 1% KEV · Not listed
Vendors
Products
CVE-2023-52951

Cleartext Transmission Vulnerability in Synology Note Station Client Allows MITM Credential Theft

A cleartext transmission of sensitive information vulnerability in Synology Note Station Client before 2.2.4-703 allows man-in-the-middle attackers to obtain user credential.

CVSS 3.1 · 5.9 Medium EPSS < 1% KEV · Not listed
Vendors
CVE-2022-49042

Local Code Execution Vulnerability in Synology Hyper Backup Explorer Due to Untrusted MinGW DLL Inclusion

An inclusion of functionality from untrusted control sphere vulnerability in MinGW DLL component in Synology Hyper Backup Explorer before 3.0.1-0156 allows local users to execute arbitrary code via unspecified vectors.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed
Vendors
CVE-2025-13392

Remote Authentication Bypass via SSO in Synology DSM

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).

CVSS 3.1 · 8.1 High EPSS < 1% KEV · Not listed
Vendors
CVE-2025-14713

Remote Credential Retrieval via Exposed Method in Synology C2 Identity Edge Server

An Exposed Dangerous Method or Function vulnerability in Synology C2 Identity Edge Server package in DSM before 1.76.0-0307 allows remote attackers to obtain user credentials from the edge server.

CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed
Vendors