Heap-based buffer overflow in Hue Bridge V2 - CVE-2026-3561
Published: March 9, 2026
Vulnerability identifier: #VU123637
CSH Severity: Medium
CVSS v4: 8.6 [CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-3561
CWE-ID: CWE-122
Exploitation vector: Adjecent network
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error within the handling of PUT requests to the characteristics endpoint. A remote user on the local network can pass specially crafted data to the application, trigger a heap-based buffer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Affected software
Hue Bridge V2
How to mitigate CVE-2026-3561
Install updates from vendor's website.
Hue Bridge V2 - update to 1975170000