CVE Feed

    Dashboard / CVE / CVE-2020-27656

    CVE-2020-27656

    Cleartext transmission of sensitive information vulnerability in DDNS in Synology DiskStation Manager (DSM) before 6.2.3-25426-2 allows man-in-the-middle attackers to eavesdrop authentication information of DNSExit via unspecified vectors.

    Published:Oct 29, 2020
    Last Modified:Jan 14, 2025
    EPS:Oct 29, 2020
    EPSS Score:0.00099
    CVSS Score:6.5

    Affected Products

    Vendor
    Synology
    Product
    Diskstation Manager

    Exploits

    https://www.talosintelligence.com/vulnerability_reports/TALOS-2020-1071https://www.talosintelligence.com/vulnerability_reports/TALOS-2020-1071

    Related CVEs

    CVE-2026-2237 (CVSS 6.2) — A use of get request method with sensitive query strings vulnerability in volume encryption of Synology Storag…
    CVE-2025-30028 (CVSS 8.6) — A vulnerability in Active Backup for Business allows unauthorized remote attackers to read arbitrary files.…
    CVE-2025-14713 (CVSS 7.5) — An Exposed Dangerous Method or Function vulnerability in Synology C2 Identity Edge Server package in DSM befor…
    CVE-2025-13392 (CVSS 8.1) — Improper check for unusual or exceptional conditions vulnerability in SSO in Synology DiskStation Manager (DSM…
    CVE-2025-13167 (CVSS 5.4) — Improper neutralization of input during web page generation ('Cross-site Scripting') vulnerability in contact …
    CVE-2024-47272 (CVSS 2.7) — Incorrect authorization vulnerability in IO Module functionality in Synology Surveillance Station before 9.2.2…
    CVE-2024-47271 (CVSS 4.9) — Insufficiently protected credentials vulnerability in IPSpeaker component in Synology Surveillance Station bef…
    CVE-2024-47270 (CVSS 2.7) — Improper preservation of permissions vulnerability in Archiving Push functionality in Synology Surveillance St…
    CVE-2024-47269 (CVSS 4.9) — Cleartext transmission of sensitive information vulnerability in Export Key functionality in Synology Surveill…
    CVE-2024-47268 (CVSS 4.9) — Missing authorization vulnerability in AddOns functionality in Synology Surveillance Station before 9.2.2-1157…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High