CVE-2026-51692
Unauthenticated remote config of TOTOLINK T6 guest Wi‑Fi via crafted POST
Is CVE-2026-51692 being exploited?
Not confirmed. CVE-2026-51692 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.29% probability of exploitation in the next 30 days.
How severe is CVE-2026-51692?
CVE-2026-51692 is rated Critical with a CVSS score of 9.1. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-51692?
Not known from our data. No patch reference has been recorded for CVE-2026-51692, which is not the same as no patch existing — a fix may have shipped without a tagged reference, or after this record was written. The vendor advisory is the only authority on whether a fix exists, and mitigations may be available regardless.
What does CVE-2026-51692 affect?
CVE-2026-51692 affects TOTOLINK T6 firmware 4.1.5cu.748_B20211015, TOTOLINK T6 routers (web CGI /cgi-bin/cstecgi.cgi). Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-51692?
Block WAN admin access; restrict management to LAN; isolate affected routers; apply vendor firmware when available.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Unauthenticated attacker can modify/enable/weaken guest Wi‑Fi via HTTP POST to /cgi-bin/cstecgi.cgi, creating insecure SSIDs and enabling unauthorized network access.
Immediate action required