High severity8.3NVD Advisory· Published Oct 29, 2020· Updated Jun 17, 2026

CVE-2020-27653

Description

Algorithm downgrade vulnerability in QuickConnect in Synology Router Manager (SRM) before 1.2.4-8081 allows man-in-the-middle attackers to spoof servers and obtain sensitive information via unspecified vectors.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Synology/Synology Router Manager (SRM)llm-fuzzy2 versions
<1.2.4-8081+ 1 more
- (no CPE)range: <1.2.4-8081
- (no CPE)range: unspecified
Synology/QuickConnectllm-create
Range: <1.2.4-8081
Synology/Router Manager
cpe:2.3:a:synology:router_manager:*:*:*:*:*:*:*:*
Range: >=1.2,<1.2.4-8081
Synology/Diskstation Manager
cpe:2.3:o:synology:diskstation_manager:6.2.3_25426:*:*:*:*:*:*:*

Patches

Vulnerability mechanics

References

www.talosintelligence.com/vulnerability_reports/TALOS-2020-1061nvdExploitThird Party Advisory
www.synology.com/security/advisory/Synology_SA_20_14nvdVendor Advisory

News mentions

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cvss	0.540
epss	0.001
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kev	0.000
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ransomware	0.000