Critical severity · published Aug 3, 2026
CVE-2026-18614
GL-iNet GL-MT3000 s2s.so Native Plugin glc s2s.enable_echo_server command injection
9.8
CVSS
3.6%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)3.6% · higher than 89% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
GL
GL-MT3000 · GL-iNet
4.4.0; 4.4.1; 4.4.2; 4.4.3; 4.4.4; 4.4.5 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-18614
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-18614
github.com
https://github.com/StrTzz123/iot_vul/blob/main/GL-iNet/MT3000/4.4.5/s2s_enable_echo_server_glc_rce/CVE.md
vuldb.com
https://vuldb.com/cve/CVE-2026-18614
vuldb.com
https://vuldb.com/submit/851558
vuldb.com
https://vuldb.com/vuln/385534
vuldb.com
https://vuldb.com/vuln/385534/cti
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