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TI-2020-16772 Aliases CVE-2020-27657GHSA-24jw-4h76-4686

Cleartext transmission of sensitive information in Synology Router Manager

Priority LOW 30CWE-319Published · Updated

Key facts

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

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-319.

Summary

Cleartext transmission of sensitive information vulnerability in DDNS in Synology Router Manager (SRM) before 1.2.4-8081 allows man-in-the-middle attackers to eavesdrop authentication information of DNSExit via unspecified vectors.

Why it matters now

EPSS 0.00585 48th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed Synology Router Manager (SRM) (Synology): 1.2.4-8081

SSVC decision points

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

Affected products

VendorProductAffected versionsFixed inStatusSource
SynologySynology Router Manager (SRM)before 1.2.4-80811.2.4-8081Patch availableCNA
  • Synology Router Manager (SRM) VendorSynology Affected before 1.2.4-8081 Fixed in 1.2.4-8081 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:synology:router_manager:*:*:*:*:*:*:*:*1.2 to before 1.2.4-8081VulnerableSynology
  • cpe:2.3:a:synology:router_manager:*:*:*:*:*:*:*:* Versions 1.2 to before 1.2.4-8081 Vulnerable ·Synology

Remediation

  • Fix · CNA Synology Router Manager (SRM) (Synology) Fixed in 1.2.4-8081

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    Synology Router Manager (SRM) 1.2.4-8081

    7 records Highest priority Priority MEDIUM 3 MEDIUM, 4 LOW

    Other records, highest priority first

    • TI-2020-16769 Improper privilege management in Synology Router ManagerPriority MEDIUM 50
    • TI-2020-16770 Improper privilege management in Synology Router ManagerPriority MEDIUM 46
    • TI-2020-16764 Improper certificate validation in Synology Router ManagerPriority MEDIUM 40
    Show all 7 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2020-27657
  2. 2026-10-03 Alias added: GHSA-24jw-4h76-4686

References

Exploit 1

Advisory 1

  • TI-2018-01076 Out-of-bounds write in Netatalk CVSS 3.1CRITICAL 9.8
  • TI-2017-10594 Heap-based buffer overflow in dnsmasq before 2.78 allows remote attackers to cause a… CVSS 3.1CRITICAL 9.8
  • TI-2017-03716 Observable discrepancy in Intel Most Modern Operating Systems CVSS 3.1MEDIUM 5.6
  • TI-2023-16144 Improper neutralization of special elements used in an OS command ('OS Command… CVSS 3.1CRITICAL 9.8
  • TI-2023-00073 Integer overflow or wraparound vulnerability in CGI component in Synology Router Manager… CVSS 3.1CRITICAL 9.8
  • TI-2020-16769 Improper privilege management in Synology Router Manager CVSS 3.1CRITICAL 9.8
See all 58 →

Sources

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