DM
Product
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
Severity mix
Critical 4High 14Medium 2Low 0
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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
CVE-2022-22687
9.8
2%
Mar 25
Buffer copy without checking size of input ('Classic Buffer Overflow') vulnerability in Authentication functionality in Synology DiskStation Manager (DSM) before 6.2.3-25426-3…
Affected: before 3.1-23033
CVE-2021-27649
9.8
2%
Jun 23
Use after free vulnerability in file transfer protocol component in Synology DiskStation Manager (DSM) before 6.2.3-25426-3 allows remote attackers to execute arbitrary code via…
Affected: before 3.1-23033
CVE-2024-45538
9.6
0%
Dec 4
Cross-Site Request Forgery (CSRF) vulnerability in WebAPI Framework in Synology DiskStation Manager (DSM) before 7.2.1-69057-2 and 7.2.2-72806 and Synology Unified Controller…
Affected: 3.1-23028 before 3.1.4-23079
CVE-2021-26566
9.0
2%
Feb 26
Insertion of sensitive information into sent data vulnerability in synorelayd in Synology DiskStation Manager (DSM) before 6.2.3-25426-3 allows man-in-the-middle attackers to…
Affected: 3.0
CVE-2024-5401
8.8
0%
Dec 4
Improper control of dynamically-managed code resources vulnerability in WebAPI component in Synology DiskStation Manager (DSM) before 7.1.1-42962-8 and 7.2.1-69057-2 and…
Affected: 3.1-23028 before 3.1.4-23079
CVE-2021-26564
8.7
1%
Feb 26
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…
Affected: 3.0
CVE-2023-0142
8.1
1%
Jun 13
Uncontrolled search path element vulnerability in Backup Management functionality in Synology DiskStation Manager (DSM) before 6.2.4-25556-8, 7.0.1-42218-7 and 7.1-42661 allows…
Affected: 3.1
CVE-2021-26562
8.1
2%
Feb 26
Out-of-bounds write vulnerability in synoagentregisterd in Synology DiskStation Manager (DSM) before 6.2.3-25426-3 allows man-in-the-middle attackers to execute arbitrary code via…
Affected: 3.0
CVE-2021-26561
8.1
2%
Feb 26
Stack-based buffer overflow vulnerability in synoagentregisterd in Synology DiskStation Manager (DSM) before 6.2.3-25426-3 allows man-in-the-middle attackers to execute arbitrary…
Affected: 3.0
CVE-2021-26567
7.8
1%
Feb 26
Stack-based buffer overflow vulnerability in frontend/main.c in faad2 before 2.2.7.1 allow local attackers to execute arbitrary code via filename and pathname options
Affected: 3.0
CVE-2024-45539
7.5
0%
Dec 4
Out-of-bounds write vulnerability in cgi components in Synology DiskStation Manager (DSM) before 7.2.1-69057-2 and 7.2.2-72806 and Synology Unified Controller (DSMUC) before…
Affected: 3.1-23028 before 3.1.4-23079
CVE-2023-2729
7.5
1%
Jun 13
Use of insufficiently random values vulnerability in User Management Functionality in Synology DiskStation Manager (DSM) before 7.2-64561 allows remote attackers to obtain user…
Affected: 3.1
CVE-2021-29087
7.5
1%
Jun 23
Improper limitation of a pathname to a restricted directory ('Path Traversal') vulnerability in webapi component in Synology DiskStation Manager (DSM) before 6.2.3-25426-3 allows…
Affected: before 3.1-23033
CVE-2021-29086
7.5
1%
Jun 23
Exposure of sensitive information to an unauthorized actor vulnerability in webapi component in Synology DiskStation Manager (DSM) before 6.2.3-25426-3 allows remote attackers to…
Affected: before 3.1-23033
CVE-2021-29085
7.5
1%
Jun 23
Improper neutralization of special elements in output used by a downstream component ('Injection') vulnerability in file sharing management component in Synology DiskStation…
Affected: before 3.1-23033
CVE-2021-29084
7.5
1%
Jun 23
Improper neutralization of special elements in output used by a downstream component ('Injection') vulnerability in Security Advisor report management component in Synology…
Affected: before 3.1-23033
CVE-2021-26560
7.4
1%
Feb 26
Cleartext transmission of sensitive information vulnerability in synoagentregisterd in Synology DiskStation Manager (DSM) before 6.2.3-25426-3 allows man-in-the-middle attackers…
Affected: 3.0
CVE-2021-26563
6.7
1%
Feb 26
Incorrect authorization vulnerability in synoagentregisterd in Synology DiskStation Manager (DSM) before 6.2.4-25553 allows local users to execute arbitrary code via unspecified…
Affected: 3.0
CVE-2021-26565
5.9
1%
Feb 26
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 obtain…
Affected: 3.0
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