Technology · Synology
Synology DiskStation Manager vulnerabilities
Updated . Rebuilt every hour.
Junglewise Threat Intelligence has tracked 16 vulnerabilities in Synology DiskStation Manager: 0 in the last 7 days and 15 in the last 90 days, 2 of them critical and 0 exploited in the wild. The most recent, CVE-2026-40539, was published on 18 September 2026.
- Last 7 days
- 0
- Last 90 days
- 15
- Critical, all time
- 2
- Exploited in the wild
- 0
About Synology DiskStation Manager
A Linux-based operating system used for managing Synology Network Attached Storage (NAS) devices.
Latest Synology DiskStation Manager vulnerabilities
- CVE-2026-40539: Synology DiskStation Manager improper certificate validation in Email APIhighCVSS 7.1EPSS 0.1%
- CVE-2026-40538: Synology DiskStation Manager brute-force attack via insufficient rate limitinglowCVSS 3.7EPSS 0.4%
- CVE-2026-40537: Synology DiskStation Manager SSRF in PersonMail APImediumCVSS 4.3EPSS 0.3%
- CVE-2026-40536: Synology DiskStation Manager path traversal in Audio APImediumCVSS 4.3EPSS 0.4%
- CVE-2026-40535: Synology DiskStation Manager path traversal in Desktop APImediumCVSS 6.5EPSS 0.5%
- CVE-2026-40534: Synology DiskStation Manager cross-site scripting in Video APImediumCVSS 5.4EPSS 0.3%
- CVE-2026-40533: Synology DiskStation Manager information disclosure in Desktop APImediumCVSS 5.3EPSS 0.4%
- CVE-2026-40532: Synology DiskStation Manager forced browsing in Wallpaper PathmediumCVSS 6.5EPSS 0.4%
- CVE-2026-40530: Synology DiskStation Manager CRLF injection in User APIhighCVSS 8EPSS 0.5%
- CVE-2026-13684: Synology DiskStation Manager improper encoding in SCGIcriticalCVSS 9.8EPSS 0.6%
- CVE-2026-13683: Synology DiskStation Manager SQL injection in EventScheduler APIlowCVSS 2.7EPSS 0.3%
- CVE-2026-13666: Synology DiskStation Manager CRLF injection in Sharing APIlowCVSS 3.5EPSS 0.3%
- CVE-2026-13639: Synology DiskStation Manager insufficient entropy in login logiccriticalCVSS 9.8EPSS 0.7%
- CVE-2026-13635: Synology DiskStation Manager improper encoding in Auth APImediumCVSS 5.3EPSS 0.3%
- CVE-2026-13623: Synology DiskStation Manager cross-site scripting in Theme APImediumCVSS 4.8EPSS 0.3%
- CVE-2025-13392: Synology DSM authentication bypass in SSOhighCVSS 8.1
Most severe Synology DiskStation Manager vulnerabilities
Exploited in the wild first, then by severity and CVSS score.
- CVE-2026-13639: Synology DiskStation Manager insufficient entropy in login logiccriticalCVSS 9.8EPSS 0.7%
- CVE-2026-13684: Synology DiskStation Manager improper encoding in SCGIcriticalCVSS 9.8EPSS 0.6%
- CVE-2025-13392: Synology DSM authentication bypass in SSOhighCVSS 8.1
- CVE-2026-40530: Synology DiskStation Manager CRLF injection in User APIhighCVSS 8EPSS 0.5%
- CVE-2026-40539: Synology DiskStation Manager improper certificate validation in Email APIhighCVSS 7.1EPSS 0.1%
- CVE-2026-40535: Synology DiskStation Manager path traversal in Desktop APImediumCVSS 6.5EPSS 0.5%
- CVE-2026-40532: Synology DiskStation Manager forced browsing in Wallpaper PathmediumCVSS 6.5EPSS 0.4%
- CVE-2026-40534: Synology DiskStation Manager cross-site scripting in Video APImediumCVSS 5.4EPSS 0.3%
- CVE-2026-40533: Synology DiskStation Manager information disclosure in Desktop APImediumCVSS 5.3EPSS 0.4%
- CVE-2026-13635: Synology DiskStation Manager improper encoding in Auth APImediumCVSS 5.3EPSS 0.3%
Vulnerabilities per week
The last 13 weeks, by the week each vulnerability was published.
| Week of | Bar | Vulns | Critical |
|---|---|---|---|
| 29 Jun 2026 | 0 | 0 | |
| 6 Jul 2026 | 0 | 0 | |
| 13 Jul 2026 | 0 | 0 | |
| 20 Jul 2026 | 0 | 0 | |
| 27 Jul 2026 | 0 | 0 | |
| 3 Aug 2026 | 0 | 0 | |
| 10 Aug 2026 | 0 | 0 | |
| 17 Aug 2026 | 0 | 0 | |
| 24 Aug 2026 | 0 | 0 | |
| 31 Aug 2026 | 0 | 0 | |
| 7 Sep 2026 | 0 | 0 | |
| 14 Sep 2026 | 15 | 2 | |
| 21 Sep 2026 | 0 | 0 |
How this is built
Junglewise Threat Intelligence collects vulnerabilities from NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories, and matches each one to the technologies and vendors it affects. Dates are the date a vulnerability was published, in UTC.
The pages are rebuilt from the database every hour. Frozen weekly and monthly reports never change once published, so they can be cited.
Use this data
The same data is at https://junglewise.ai/threats/technologies/diskstation-manager.json, for scripts and language models. It is free to reuse under CC BY 4.0 with a link back to this page.
Cite as: Junglewise Threat Intelligence, "Synology DiskStation Manager vulnerabilities", https://junglewise.ai/threats/technologies/diskstation-manager, 26 September 2026.