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Diskstation Manager Unified Controller
by Synology · last CVE Dec 4, 2025
On CISA KEVExploited in the wild
20
CVEs
1
On KEV
9.8
Max CVSS
0
New 30D
Vulnerabilities20In the news0Timeline
Severity mix
Critical 4High 14Medium 2Low 0
Severity
All severities20Critical4High14Medium2Low0
Exploitation
On CISA KEV1Exploited in the wild1
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CVECVSSEPSSPublishedSummary · affected versions
CVE-2021-3156
In wildKEV
7.8
100%
Jan 26
Sudo Heap-Based Buffer Overflow Vulnerability
Affected: 3.0
Showing 1