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CVE-2026-18684

CRITICALCVSS 9.8/10EPSS 2.03%

Last modified

CVE-2026-18684 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. A weakness has been identified in GL.iNet GL-MT3000 up to 4.4.5. This issue affects the function remove_profile of the file /cgi-bin/glc of the component modem.so. EPSS estimates a 2.03% chance of exploitation in the next 30 days.

Description

A weakness has been identified in GL.iNet GL-MT3000 up to 4.4.5. This issue affects the function remove_profile of the file /cgi-bin/glc of the component modem.so. This manipulation causes command injection. It is possible to initiate the attack remotely. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure and confirmed the existence of the vulnerability.

Metrics

CVSS 3.1
9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS 4.0
8.9/10

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/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

CVSS 3.0
9.8/10

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R

EPSS Probability
2.03%

79.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
GL.iNetGL-MT30004.4.0; 4.4.1; 4.4.2; 4.4.3; 4.4.4; 4.4.5

References

Timeline

Published
Last Modified
Status
Received

Frequently Asked Questions

What is CVE-2026-18684?
A weakness has been identified in GL.iNet GL-MT3000 up to 4.4.5. This issue affects the function remove_profile of the file /cgi-bin/glc of the component modem.so. This manipulation causes command injection. It is possible to initiate the attack remotely. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure and confirmed the existence of the vulnerability.
How severe is CVE-2026-18684?
CVE-2026-18684 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 2.03% probability of exploitation in the next 30 days.
How do I fix CVE-2026-18684?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST