The vulnerability of the Synology SSL VPN Client lies in the storage of passwords in an unencrypted form, which allows a hacker to intercept VPN traffic during user interactions.
🗓️ 15 Apr 2026 00:00:00Reported by FSTEC of Russia — Information Security Threat DatabaseType 
bdu_fstec🔗 bdu.fstec.ru👁 12 Views
| Reporter | Title | Published | Views | Family All 11 |
|---|---|---|---|---|
 | CVE-2021-47961 | 10 Apr 202609:22 | – | attackerkb |
 | CVE-2021-47961 | 10 Apr 202610:17 | – | circl |
 | Synology SSL VPN Client 安全漏洞 | 10 Apr 202600:00 | – | cnnvd |
 | CVE-2021-47961 | 10 Apr 202609:22 | – | cve |
 | CVE-2021-47961 | 10 Apr 202609:22 | – | cvelist |
 | EUVD-2021-34779 | 10 Apr 202612:31 | – | euvd |
 | Vulnerabilities fixed in Synology SSL VPN Client | 10 Apr 202612:11 | – | ncsc |
 | CVE-2021-47961 | 10 Apr 202610:16 | – | nvd |
 | PT-2026-31906 | 10 Apr 202600:00 | – | ptsecurity |
 | CVE-2021-47961 | 5 Jun 202619:50 | – | redhatcve |
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15 Apr 2026 00:00Current
5.8Medium risk
Vulners AI Score5.8
CVSS 38.1
CVSS 29.4
EPSS0.00322