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TI-2018-06467 Aliases CVE-2018-8929GHSA-x728-vr6f-27f3

Cleartext transmission of sensitive information in Synology SSL VPN Client

Priority LOW 37CWE-319Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
High
Impact type
Information disclosure
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-319.

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.

Why it matters now

EPSS 0.00753 55th percentileScored 2026-11-07
Fix Fixed SSL VPN Client (Synology): 1.2.4-0224

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
SynologySSL VPN Clientbefore 1.2.4-02241.2.4-0224Patch availableCNA
  • SSL VPN Client VendorSynology Affected before 1.2.4-0224 Fixed in 1.2.4-0224 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:synology:ssl_vpn_client:*:*:*:*:*:*:*:*before 1.2.4-0224VulnerableSynology
  • cpe:2.3:a:synology:ssl_vpn_client:*:*:*:*:*:*:*:* Versions before 1.2.4-0224 Vulnerable ·Synology

Remediation

  • Fix · CNA SSL VPN Client (Synology) Fixed in 1.2.4-0224

Timeline

  1. 2026-10-02 Threatist record created from CVE-2018-8929
  2. 2026-10-03 Alias added: GHSA-x728-vr6f-27f3

References

Advisory 1

  • TI-2018-09531 Lack of administrator control over security vulnerability in client.cgi in Synology SSL… CVSS 3.0HIGH 8.8
  • TI-2021-22574 A plaintext storage of a password vulnerability in Synology SSL VPN Client before… CVSS 3.1HIGH 8.1
  • TI-2021-22573 A files or directories accessible to external parties vulnerability in Synology SSL VPN… CVSS 3.1MEDIUM 6.5
  • TI-2023-05287 Buffer overflow in Synology SSL VPN Client CVSS 3.1MEDIUM 5.5

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences