RCE in Gl-Inet Gl-Mt3000
CVE-2026-18614
A vulnerability was found in GL-iNet GL-MT3000 up to 4.4.5. Impacted is the function s2s.enable_echo_server of the file /cgi-bin/glc of the component s2s.so Native Plugin. Performing a manipulation of the argument port results in command injection. The attack may be initiated remotely. The exploit has been made public and could be used. The vendor was contacted early about this disclosure and confirmed the existence of the vulnerability.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.036 (89.5th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 90th percentile — 89.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.036 · newest: 0.036 · change: 0.000
Affected products
- Gl-Inet Gl-Mt3000 — versions 4.4.0, 4.4.1, 4.4.2
Weakness classification (CWE)
References
- vuldb.com/vuln/385534 (technical-description, vdb-entry)
- vuldb.com/vuln/385534/cti (signature, permissions-required)
- vuldb.com/cve/CVE-2026-18614 (third-party-advisory)
- vuldb.com/submit/851558 (third-party-advisory)
- github.com/StrTzz123/iot_vul/blob/main/GL-iNet/MT3000/4.4.5/s2s_enable_echo_ser… (exploit)
Frequently asked questions
- What is CVE-2026-18614?
- CVE-2026-18614 is a critical-severity vulnerability in Gl-Inet Gl-Mt3000, classified under Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection). CVSS score: 9.8/10. Published 2026-08-03.
- How severe is CVE-2026-18614?
- Critical severity. CVSS v3 base score is 9.8 out of 10.