CVE-2020-12774
D-Link DSL-7740C - Command Injection
D-Link DSL-7740C does not properly validate user input, which allows an authenticated LAN user to inject arbitrary command.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- High
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
D-Link DSL-7740C - Command Injection
D-Link DSL-7740C does not properly validate user input, which allows an authenticated LAN user to inject arbitrary command.
- Record
CVE-2020-12774- CVSS 3.1
- 8.2 High
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H - Weakness
- CWE-78
- Updated
- 2026-11-02
EUVDEUVD-2020-5059
D-Link DSL-7740C does not properly validate user input, which allows an authenticated LAN user to inject arbitrary command.
- Record
EUVD-2020-5059- CVSS 3.1
- 8.2 High
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-cqgh-444q-45w8 No score
D-Link DSL-7740C does not properly validate user input, which allows an authenticated LAN user to...
D-Link DSL-7740C does not properly validate user input, which allows an authenticated LAN user to inject arbitrary command.
- Record
GHSA-cqgh-444q-45w8- Weakness
- CWE-78
- Updated
- 2026-11-02
NVD
D-Link DSL-7740C does not properly validate user input, which allows an authenticated LAN user to inject arbitrary command.
- Record
CVE-2020-12774- CVSS 3.1
- 8.2 High
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H - CVSS 3.1
- 6.7 Medium
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H - CVSS 2.0
- 4.6 Medium
AV:L/AC:L/Au:N/C:P/I:P/A:P - Weakness
- CWE-78
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases, published | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2020-12774 is a high vulnerability (CVSS 8.2) in D-link Dsl-7740c, published July 22, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.41%, the 35th percentile. No source names a fixed version.