VULNERABILITY INTELLIGENCE
CVE-2026-51689
CVSS score9.1 CRITICAL
EPSS probability0.62%
CISA KEVNot currently listed
Published2026-08-31
Last modified2026-09-02
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
Description
Incorrect access control in the setUpgradeFW function of TOTOLINK T6 4.1.5cu.748_B20211015 allows unauthenticated attackers to trigger firmware-upgrade workflow changes via sending a crafted POST request to /cgi-bin/cstecgi.cgi.
Weakness classification
- 134c704f-9b21-4f2e-91b3-4a467353bcc0: CWE-284