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Dsl 7740C Firmware CVE-2020-12774

MEDIUM
OS Command Injection (CWE-78)
2020-07-22 twcert@cert.org.tw
6.7
CVSS 3.1 · NVD
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Severity by source

NVD PRIMARY
6.7 MEDIUM
AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Attack Vector
Local
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

1
CVE Published
Jul 22, 2020 - 08:15 nvd
MEDIUM 6.7

DescriptionNVD

D-Link DSL-7740C does not properly validate user input, which allows an authenticated LAN user to inject arbitrary command.

AnalysisAI

D-Link DSL-7740C does not properly validate user input, which allows an authenticated LAN user to inject arbitrary command. Rated medium severity (CVSS 6.7), this vulnerability is low attack complexity. No vendor patch available.

Technical ContextAI

This vulnerability is classified as OS Command Injection (CWE-78), which allows attackers to execute arbitrary operating system commands on the host. D-Link DSL-7740C does not properly validate user input, which allows an authenticated LAN user to inject arbitrary command. Affected products include: Dlink Dsl-7740C Firmware.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Avoid passing user input to shell commands. Use language-specific APIs instead of shell execution. Apply strict input validation with allowlists.

CVE-2025-29523 HIGH POC
7.2 Aug 25

D-Link DSL-7740C with firmware DSL7740C.V6.TR069.20211230 was discovered to contain a command injection vulnerability vi

CVE-2025-29522 MEDIUM POC
6.5 Aug 25

D-Link DSL-7740C with firmware DSL7740C.V6.TR069.20211230 was discovered to contain a command injection vulnerability vi

CVE-2025-29521 MEDIUM POC
5.3 Aug 25

Insecure default credentials for the Adminsitrator account of D-Link DSL-7740C with firmware DSL7740C.V6.TR069.20211230

CVE-2025-29520 MEDIUM POC
5.3 Aug 25

Incorrect access control in the Maintenance module of D-Link DSL-7740C with firmware DSL7740C.V6.TR069.20211230 allows a

CVE-2025-29519 MEDIUM POC
5.3 Aug 25

A command injection vulnerability in the EXE parameter of D-Link DSL-7740C with firmware DSL7740C.V6.TR069.20211230 allo

CVE-2025-29517 MEDIUM POC
6.8 Aug 25

D-Link DSL-7740C with firmware DSL7740C.V6.TR069.20211230 was discovered to contain a command injection vulnerability vi

CVE-2025-29516 HIGH POC
7.2 Aug 25

D-Link DSL-7740C with firmware DSL7740C.V6.TR069.20211230 was discovered to contain a command injection vulnerability vi

CVE-2025-29515 CRITICAL POC
9.8 Aug 25

Incorrect access control in the DELT_file.xgi endpoint of D-Link DSL-7740C with firmware DSL7740C.V6.TR069.20211230 allo

CVE-2025-29514 CRITICAL POC
9.8 Aug 25

Incorrect access control in the config.xgi function of D-Link DSL-7740C with firmware DSL7740C.V6.TR069.20211230 allows

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CVE-2020-12774 vulnerability details – vuln.today

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