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D-Link DWR-M920 EUVD-2026-34775

| CVE-2026-10878 LOW
Command Injection (CWE-77)
2026-06-05 VulDB GHSA-j2q3-mwgw-r24j
D-Link Command Injection
2.1
CVSS 4.0 · NVD

Severity by source

NVD PRIMARY
2.1 LOW
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
X

Lifecycle Timeline

3
Analysis Generated
Jun 05, 2026 - 00:30 vuln.today
Severity Changed
Jun 05, 2026 - 00:22 NVD
MEDIUM LOW
CVSS changed
Jun 05, 2026 - 00:22 NVD
6.3 (MEDIUM) 2.1 (LOW)

DescriptionCVE.org

A vulnerability was detected in D-Link DWR-M920 1.1.50/1.1.70. Affected is the function sub_41C8E8 of the file /boafrm/formSmsManage. Performing a manipulation of the argument action_value results in command injection. The attack is possible to be carried out remotely. The exploit is now public and may be used.

AnalysisAI

Command injection in D-Link DWR-M920 router firmware versions 1.1.50 and 1.1.70 allows a low-privileged, remote-authenticated attacker to inject OS commands via the action_value parameter in the SMS management endpoint /boafrm/formSmsManage. The vulnerability resides in the C function sub_41C8E8 and stems from unsanitized user input being passed directly to a command interpreter (CWE-77). …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
Identify DWR-M920 management interface
Delivery
Authenticate with low-privilege credentials
Exploit
Craft malicious action_value payload with shell metacharacters
Execution
POST request to /boafrm/formSmsManage
Persist
sub_41C8E8 executes injected OS command
Impact
Achieve arbitrary command execution on router
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Vulnerability AssessmentAI

Exploitation Authentication is required: the CVSS vector specifies PR:L (low privileges required), meaning the attacker must hold a valid low-privilege session on the device's web management interface before exploitation is possible. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The CVSS 4.0 base score of 2.1 appears significantly understated relative to the nature of the vulnerability. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario An attacker with access to a low-privilege account on the D-Link DWR-M920 web management interface - whether via default credentials, credential reuse, or prior compromise - submits a crafted HTTP POST request to /boafrm/formSmsManage with a malicious action_value parameter containing shell metacharacters (e.g., action_value=test;id;). The Boa server passes this value unsanitized to sub_41C8E8, which executes the injected command as part of the router's OS-level process. …
Remediation No vendor-released patch has been identified at time of analysis. … Detailed patch versions, workarounds, and compensating controls in full report.
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EUVD-2026-34775 vulnerability details – vuln.today
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