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3 vulnerabilities found for SSL VPN Client by Synology

CERTFR-2026-AVI-0431
Vulnerability from certfr_avis

De multiples vulnérabilités ont été découvertes dans Synology SSL VPN Client. Elles permettent à un attaquant de provoquer une atteinte à la confidentialité des données et une atteinte à l'intégrité des données.

Solutions

Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).

Impacted products
Vendor Product Description
Synology SSL VPN Client Synology SSL VPN Client versions antérieures à 1.4.5-0684
References

Show details on source website

To clipboard 

{
  "$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
  "affected_systems": [
    {
      "description": "Synology SSL VPN Client versions ant\u00e9rieures \u00e0 1.4.5-0684",
      "product": {
        "name": "SSL VPN Client",
        "vendor": {
          "name": "Synology",
          "scada": false
        }
      }
    }
  ],
  "affected_systems_content": "",
  "content": "## Solutions\n\nSe r\u00e9f\u00e9rer au bulletin de s\u00e9curit\u00e9 de l\u0027\u00e9diteur pour l\u0027obtention des correctifs (cf. section Documentation).",
  "cves": [
    {
      "name": "CVE-2021-47960",
      "url": "https://www.cve.org/CVERecord?id=CVE-2021-47960"
    },
    {
      "name": "CVE-2021-47961",
      "url": "https://www.cve.org/CVERecord?id=CVE-2021-47961"
    }
  ],
  "initial_release_date": "2026-04-14T00:00:00",
  "last_revision_date": "2026-04-14T00:00:00",
  "links": [],
  "reference": "CERTFR-2026-AVI-0431",
  "revisions": [
    {
      "description": "Version initiale",
      "revision_date": "2026-04-14T00:00:00.000000"
    }
  ],
  "risks": [
    {
      "description": "Atteinte \u00e0 l\u0027int\u00e9grit\u00e9 des donn\u00e9es"
    },
    {
      "description": "Atteinte \u00e0 la confidentialit\u00e9 des donn\u00e9es"
    }
  ],
  "summary": "De multiples vuln\u00e9rabilit\u00e9s ont \u00e9t\u00e9 d\u00e9couvertes dans Synology SSL VPN Client. Elles permettent \u00e0 un attaquant de provoquer une atteinte \u00e0 la confidentialit\u00e9 des donn\u00e9es et une atteinte \u00e0 l\u0027int\u00e9grit\u00e9 des donn\u00e9es.",
  "title": "Multiples vuln\u00e9rabilit\u00e9s dans Synology SSL VPN Client",
  "vendor_advisories": [
    {
      "published_at": "2026-04-10",
      "title": "Bulletin de s\u00e9curit\u00e9 Synology Synology_SA_26_05",
      "url": "https://www.synology.com/en-global/security/advisory/Synology_SA_26_05"
    }
  ]
}

CVE-2018-13283 (GCVE-0-2018-13283)
Vulnerability from cvelistv5
Published
2019-04-01 14:25
Modified
2024-09-16 18:13
Severity ?
8.8 (High) - CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CWE
  • CWE-671 - Lack of Administrator Control over Security ()
Summary
Lack of administrator control over security vulnerability in client.cgi in Synology SSL VPN Client before 1.2.5-0226 allows remote attackers to conduct man-in-the-middle attacks via the (1) command, (2) hostname, or (3) port parameter.
References
Impacted products
Vendor Product Version
Synology SSL VPN Client Version: unspecified   < 1.2.5-0226
 Create a notification for this product.
Show details on NVD website

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            "url": "https://www.synology.com/security/advisory/Synology_SA_18_30"
          }
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CVE-2018-8929 (GCVE-0-2018-8929)
Vulnerability from cvelistv5
Published
2018-07-06 12:00
Modified
2024-09-16 20:41
Severity ?
7.3 (High) - CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
CWE
  • CWE-319 - Cleartext Transmission of Sensitive Information
Summary
Improper restriction of communication channel to intended endpoints vulnerability in HTTP daemon in Synology SSL VPN Client before 1.2.4-0224 allows remote attackers to conduct man-in-the-middle attacks via a crafted payload.
References
Impacted products
Vendor Product Version
Synology SSL VPN Client Version: unspecified   < 1.2.4-0224
 Create a notification for this product.
Show details on NVD website

To clipboard 

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            "url": "https://www.synology.com/en-global/support/security/Synology_SA_18_19"
          }
        ],
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    ],
    "cna": {
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        {
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