CVE-2026-18686
9.8
CRITICAL · CVSS 3.1 · EPSS 4.7% (pctl 92)
In your normal cycle
Critical by CVSS (9.8), but no sign of active exploitation.
Description
A vulnerability was detected in GL.iNet GL-MT3000 up to 4.4.5. The affected element is the function nas-web.add_user of the file /cgi-bin/glc of the component nas-web RPC Wrapper. Performing a manipulation results in command injection. The attack can be initiated remotely. The exploit is now public and may be used. The vendor was contacted early about this disclosure and confirmed the existence of the vulnerability.
Scoring
| CVSS | 9.8 (CRITICAL, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| EPSS | 4.73% — more likely to be exploited than 92% of all CVEs |
| Weakness | CWE-74 |
| On CISA KEV | no |
| Public exploit | none known |
| Published | 2026-08-04 |
| Last modified | 2026-08-12 |
References
→ the Explorer · watch your stack · NVD