The vulnerability of the set_upgrade() function at the /cgi-bin/glc endpoint of the modem.so component of the GL.iNet GL-MT3000 router microprogramming system allows a intruder to execute arbitrary commands.
🗓️ 05 Aug 2026 00:00:00Reported by FSTEC of Russia — Information Security Threat DatabaseType 
bdu_fstec🔗 bdu.fstec.ru👁 5 Views
| Reporter | Title | Published | Views | Family All 8 |
|---|---|---|---|---|
 | CVE-2026-18685 | 3 Aug 202623:15 | – | attackerkb |
 | CVE-2026-18685 | 3 Aug 202623:56 | – | circl |
 | CVE-2026-18685 | 3 Aug 202623:15 | – | cve |
 | CVE-2026-18685 GL.iNet GL-MT3000 modem.so glc set_upgrade command injection | 3 Aug 202623:15 | – | cvelist |
 | EUVD-2026-52537 | 4 Aug 202600:34 | – | euvd |
 | CVE-2026-18685 | 4 Aug 202600:16 | – | nvd |
 | PT-2026-67553 | 3 Aug 202600:00 | – | ptsecurity |
 | CVE-2026-18685 GL.iNet GL-MT3000 modem.so glc set_upgrade command injection | 3 Aug 202623:15 | – | vulnrichment |
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05 Aug 2026 00:00Current
7.8High risk
Vulners AI Score7.8
CVSS 39.8
CVSS 210
EPSS0.01989