What is GHSA-4j88-2p5m-hm62?

GHSA-4j88-2p5m-hm62 is a security advisory published by GitHub Security Advisories with Critical severity. Incorrect access control in the informSyncUpgfw function of TOTOLINK T6 4.1.5cu.748_B20211015...

Which CVE IDs does GHSA-4j88-2p5m-hm62 cover?

GHSA-4j88-2p5m-hm62 covers the following CVE IDs: CVE-2026-51760. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-4j88-2p5m-hm62?

GHSA-4j88-2p5m-hm62 has a CVSS v3 base score of 9.8, published by GitHub Security Advisories.

GHSA-4j88-2p5m-hm62CriticalCVSS 9.8

Incorrect access control in the informSyncUpgfw function of TOTOLINK T6 4.1.5cu.748_B20211015...

Vendor

GitHub Security Advisories

Published

September 1, 2026

Last Modified

September 2, 2026

🔗 CVE IDs covered (1)

CVE-2026-51760 →

📋 Description

Incorrect access control in the informSyncUpgfw function of TOTOLINK T6 4.1.5cu.748_B20211015 allows unauthenticated attackers to mass-trigger firmware update activity across mesh slaves via sending a crafted MQTT message to the cs_broker component.

🔗 References (6)

https://nvd.nist.gov/vuln/detail/CVE-2026-51760
https://github.com/DarkBoulder/CVE-Vendor-Coordination/blob/main/TOTOLINK/README.md
https://github.com/ShengWu00/CVE-Vendor-Coordination/blob/main/TOTOLINK/README.md
https://www.totolink.net
https://www.totolink.net/home/menu/detail/menu_listtpl/download/id/190/ids/36.html
https://github.com/advisories/GHSA-4j88-2p5m-hm62