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CVE-2020-27652

25
FAUCET Score

CVE-2020-27652 is an algorithm downgrade vulnerability in Synology DiskStation Manager (DSM) QuickConnect, affecting versions prior to 6.2.3-25426-2, as well as Synology SkyNAS and SkyNAS Firmware. This flaw allows man-in-the-middle attackers to spoof servers and obtain sensitive information. With a CVSS score of 8.3 (High), it has a network attack vector, high attack complexity, and high impact on confidentiality, integrity, and availability, requiring user interaction. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
>= 6.2, < 6.2.3-25426-2CPE matchmatch criteria
cpe:2.3:o:synology:diskstation_manager:*:*:*:*:*:*:*:*
< 6.2.3-25426CPE matchmatch criteria
cpe:2.3:o:synology:skynas_firmware:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.3HIGH

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.6
Impact Score
6.0
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.83%
Probability of exploitation in next 30 days
EPSS Percentile
53.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0083 is in the 42nd percentile among its peer group of 1,572 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.4 Bluesky, 0.2 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.6 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

synology.com / security/advisory/Synology_SA_20_18
Vendor Advisory
talosintelligence.com / vulnerability_reports/TALOS-2020-1061
ExploitThird Party Advisory