Vulnerability · Published Feb 26, 2021 · Assigned by synology
CVE-2021-26564
High 8.3
In plain English
A high-severity security flaw in Synology DiskStation Manager (DSM) from Synology. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.7% (higher than 52% of all known vulnerabilities).
Severity (CVSS 3.1)8.3High
Exploit odds (30 days)0.7%top 47.9% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
Cleartext transmission of sensitive information vulnerability in synorelayd in Synology DiskStation Manager (DSM) before 6.2.3-25426-3 allows man-in-the-middle attackers to spoof servers via an HTTP session.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Synology | Synology DiskStation Manager (DSM) | unspecified – before 6.2.3-25426-3 |
Weakness: CWE-319 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H
References
- https://www.synology.com/security/advisory/Synology_SA_20_26 x_refsource_CONFIRM
- https://www.talosintelligence.com/vulnerability_reports/TALOS-2020-1160 x_refsource_MISC