Monitor vulnerabilities like this one.
Sign up free to get alerted when software you use is affected.
9.8
CVE-2026-51728: TOTOLINK T6 router lets anyone upload malicious firmware
CVE-2026-51728 · published 3 days ago
Summary
The router's firmware‑upload feature does not verify the user who sends the request. An attacker could send a specially crafted file and replace the router’s software, potentially taking control of the network. Update the device to the latest firmware or disable remote firmware uploads until a fix is applied.
Original advisory text
Incorrect access control in the UploadFirmwareFile function of TOTOLINK T6 4.1.5cu.748_B20211015 allows unauthenticated attackers to upload a crafted firmware image via sending a crafted POST reque...
Incorrect access control in the UploadFirmwareFile function of TOTOLINK T6 4.1.5cu.748_B20211015 allows unauthenticated attackers to upload a crafted firmware image via sending a crafted POST request to /cgi-bin/cstecgi.cgi.
Severity
9.8
Critical
Exploitation
EPSS <1%
Type
CWE-284Improper Access Control
Timeline
Published31 Aug 2026
Updated3 Sep 2026
First seen31 Aug 2026
Monitor software like this
Free during beta