High severity · published Aug 4, 2026
CVE-2026-18787
GL.iNet AX1800 RPC Endpoint oui-rpc.lua remove_rule command injection
8.8
CVSS
3.2%
EPSS
No
On KEV
Description
A vulnerability was identified in GL.iNet AX1800 up to 4.8.3. The affected element is the function remove_rule of the file /usr/share/gl-ngx/oui-rpc.lua of the component RPC Endpoint. The manipulation of the argument args.id leads to command injection. The attack is possible to be carried out remotely. The exploit is publicly available and might be used. The vendor was contacted early about this disclosure.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)3.2% · higher than 88% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AX
AX1800 · GL.iNet
4.8.0; 4.8.1; 4.8.2; 4.8.3 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-18787
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-18787
github.com
https://github.com/xxianxiayubanmian/iot/blob/main/GL-link%20AX1800.md
vuldb.com
https://vuldb.com/cve/CVE-2026-18787
vuldb.com
https://vuldb.com/submit/857346
vuldb.com
https://vuldb.com/vuln/385788
vuldb.com
https://vuldb.com/vuln/385788/cti
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