Paper/Archive/CVE-2026-51689

CVE-2026-51689

mitre — Incorrect access control in the setUpgradeFW function of TOTOLINK T6 4.1.5cu.748_B20211015 allows unauthenticated attackers to trigger fi…

EPSS 0.6%CVSS 9.1

critical.is priorityof 100

CVSS 9.1 (ADP)9.1 / 10 × 3027.3 Not in CISA KEV+300.0 EPSS percentile 49.6.496 × 209.9 No public exploit+100.0 SSVC exploitation: none+100.0

Description · from the CVE record

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.

Affected

ProductAffectedFixed inSource

n/an/a–CNA

Scores by source

CISA ADP9.1CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H

CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: partial

References

reftotolink.net/home/menu/detail/menu_listtpl/download/id/190/ids/36.html reftotolink.net refgithub.com/DarkBoulder/CVE-Vendor-Coordination/blob/main/TOTOLINK/README.md refgithub.com/ShengWu00/CVE-Vendor-Coordination/blob/main/TOTOLINK/README.md