CVE-2026-90705: OS Command Injection in D-Link DWR-M921
CVE-2026-90705 is a medium severity OS command injection vulnerability in the D-Link DWR-M921 router version 1.1.52. It affects the formsysCmd function in the Boa Dispatch Table component, allowing remote attackers with high privileges to manipulate the sysCmd argument and execute arbitrary OS commands. The vulnerability has been publicly disclosed but no known exploits are reported in the wild. No patch or remediation information is provided.
AI Analysis
Technical Summary
The vulnerability exists in the formsysCmd function of the /boafrm/formsysCmd component in D-Link DWR-M921 version 1.1.52. By manipulating the sysCmd argument, an attacker with high privileges can perform OS command injection remotely. The CVSS 4.0 score is 5.1 (medium severity) with network attack vector, low complexity, no user interaction, and partial impacts on confidentiality, integrity, and availability. The exploit has been publicly disclosed but no active exploitation is known.
Potential Impact
Successful exploitation allows remote OS command injection, potentially enabling attackers with high privileges to execute arbitrary commands on the affected device. This can compromise the device's confidentiality, integrity, and availability to a limited extent as indicated by the CVSS vector.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or workaround information is provided. Until a patch is available, restrict access to the affected interface and monitor for suspicious activity.
CVE-2026-90705: OS Command Injection in D-Link DWR-M921
Description
CVE-2026-90705 is a medium severity OS command injection vulnerability in the D-Link DWR-M921 router version 1.1.52. It affects the formsysCmd function in the Boa Dispatch Table component, allowing remote attackers with high privileges to manipulate the sysCmd argument and execute arbitrary OS commands. The vulnerability has been publicly disclosed but no known exploits are reported in the wild. No patch or remediation information is provided.
CVSS v4.0
Score 5.1medium
Affected software
D-Link
DWR-M921
cpe:2.3:h:d-link:dwr-m921:*:*:*:*:*:*:*:*AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability exists in the formsysCmd function of the /boafrm/formsysCmd component in D-Link DWR-M921 version 1.1.52. By manipulating the sysCmd argument, an attacker with high privileges can perform OS command injection remotely. The CVSS 4.0 score is 5.1 (medium severity) with network attack vector, low complexity, no user interaction, and partial impacts on confidentiality, integrity, and availability. The exploit has been publicly disclosed but no active exploitation is known.
Potential Impact
Successful exploitation allows remote OS command injection, potentially enabling attackers with high privileges to execute arbitrary commands on the affected device. This can compromise the device's confidentiality, integrity, and availability to a limited extent as indicated by the CVSS vector.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or workaround information is provided. Until a patch is available, restrict access to the affected interface and monitor for suspicious activity.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulDB
- Date Reserved
- 2026-09-13T07:57:51.782Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6aa7cd3955bf5e2cf5e9c1c6
Added to database: 09/14/2026, 10:32:25 UTC
Last enriched: 09/14/2026, 10:46:39 UTC
Last updated: 09/14/2026, 10:46:39 UTC
Views: 4
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.