CVE-2021-25378
Improper access control of certain port in SmartThings prior to version 1.7.63.6 allows remote...
Improper access control of certain port in SmartThings prior to version 1.7.63.6 allows remote temporary denial of service.
Attack profile
How easy it is to exploit
- Attack vector
- Adjacent network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- Low
Exploit likelihood
What each source reports
CVE List Score used
Improper access control of certain port in SmartThings prior to version 1.7.63.6 allows remote temporary denial of service.
- Record
CVE-2021-25378- CVSS 3.1
- 4.3 Medium
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L - Weakness
- CWE-20
- Updated
- 2026-11-02
EUVDEUVD-2021-12274
Improper access control of certain port in SmartThings prior to version 1.7.63.6 allows remote temporary denial of service.
- Record
EUVD-2021-12274- CVSS 3.1
- 4.3 Medium
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-j677-7992-mrpc
Improper access control of certain port in SmartThings prior to version 1.7.63.6 allows remote...
Improper access control of certain port in SmartThings prior to version 1.7.63.6 allows remote temporary denial of service.
- Record
GHSA-j677-7992-mrpc- CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L - Updated
- 2026-11-02
NVD
Improper access control of certain port in SmartThings prior to version 1.7.63.6 allows remote temporary denial of service.
- Record
CVE-2021-25378- CVSS 3.1
- 4.3 Medium
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L - CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L - CVSS 2.0
- 5.0 Medium
AV:N/AC:L/Au:N/C:N/I:N/A:P - Weakness
- CWE-20
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-25378 is a medium vulnerability (CVSS 4.3) in Samsung Smartthings, published April 9, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.00%, the 63rd percentile. No source names a fixed version.