CVE-2026-51744 Missing authorization in n/a
Unauthenticated attackers can force mesh configuration synchronization via crafted MQTT messages, potentially altering network settings.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-51744?
CVE-2026-51744 is a critical missing authorization vulnerability in n/a, published on 1 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Incorrect access control in the recv_mesh_info_sync function of TOTOLINK T6 4.1.5cu.748_B20211015 allows unauthenticated attackers to force mesh configuration synchronization from an attacker-controlled host via sending a crafted MQTT message to the cs_broker component.
Weakness: CWE-284
Which versions are affected by CVE-2026-51744?
How do I fix CVE-2026-51744?
No fix has been published for CVE-2026-51744 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-51744 being exploited?
There is no known exploitation of CVE-2026-51744 in the wild and no public exploit code.
Sources
Also known as GHSA-pqmr-69qp-5g4w.