CVE-2026-18684: Command Injection in GL.iNet GL-MT3000
A command injection vulnerability exists in the GL.iNet GL-MT3000 router models running firmware versions 4.4.0 through 4.4.5. The flaw is in the remove_profile function within the /cgi-bin/glc component modem.so, allowing remote attackers to execute arbitrary commands. The vulnerability has a critical severity with a CVSS 4.0 score of 9.3. The vendor has confirmed the issue but no official patch or remediation guidance is currently available.
AI Analysis
Technical Summary
CVE-2026-18684 is a critical command injection vulnerability affecting GL.iNet GL-MT3000 devices with firmware versions 4.4.0 to 4.4.5. The vulnerability resides in the remove_profile function of the /cgi-bin/glc file within the modem.so component. This flaw allows unauthenticated remote attackers to execute arbitrary commands on the device, posing a significant security risk. The vulnerability has been publicly disclosed and confirmed by the vendor, but no official fix or patch has been announced as of the publication date.
Potential Impact
Successful exploitation of this vulnerability allows remote attackers to execute arbitrary commands on affected GL.iNet GL-MT3000 devices without authentication. This can lead to full compromise of the device, unauthorized control, data theft, or disruption of network services. The high CVSS score (9.3) reflects the critical nature and ease of exploitation over the network.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, users should consider limiting network exposure of affected devices and monitor vendor communications for updates. No official patch or temporary workaround has been provided by the vendor at this time.
CVE-2026-18684: Command Injection in GL.iNet GL-MT3000
Description
A command injection vulnerability exists in the GL.iNet GL-MT3000 router models running firmware versions 4.4.0 through 4.4.5. The flaw is in the remove_profile function within the /cgi-bin/glc component modem.so, allowing remote attackers to execute arbitrary commands. The vulnerability has a critical severity with a CVSS 4.0 score of 9.3. The vendor has confirmed the issue but no official patch or remediation guidance is currently available.
CVSS v4.0
Score 9.3critical
Affected software
pkg:github/gl.inet/GL-MT3000Run on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-18684 is a critical command injection vulnerability affecting GL.iNet GL-MT3000 devices with firmware versions 4.4.0 to 4.4.5. The vulnerability resides in the remove_profile function of the /cgi-bin/glc file within the modem.so component. This flaw allows unauthenticated remote attackers to execute arbitrary commands on the device, posing a significant security risk. The vulnerability has been publicly disclosed and confirmed by the vendor, but no official fix or patch has been announced as of the publication date.
Potential Impact
Successful exploitation of this vulnerability allows remote attackers to execute arbitrary commands on affected GL.iNet GL-MT3000 devices without authentication. This can lead to full compromise of the device, unauthorized control, data theft, or disruption of network services. The high CVSS score (9.3) reflects the critical nature and ease of exploitation over the network.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, users should consider limiting network exposure of affected devices and monitor vendor communications for updates. No official patch or temporary workaround has been provided by the vendor at this time.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulDB
- Date Reserved
- 2026-08-03T15:49:55.918Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a711e55bf32cb7a345e285b
Added to database: 08/03/2026, 23:03:49 UTC
Last enriched: 08/03/2026, 23:23:44 UTC
Last updated: 08/04/2026, 03:01:40 UTC
Views: 18
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.