Heap-based buffer overflow in Hue Bridge V2 - CVE-2026-3555
Published: March 9, 2026
Vulnerability identifier: #VU123631
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2026-3555
CWE-ID: CWE-122
Exploitation vector: Adjecent network
Exploit availability:
No public exploit available
Vendor: Philips
Affected software:
Hue Bridge V2
Hue Bridge V2
Detailed vulnerability description
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 custom Zigbee ZCL frames in the Model Info download functionality. A remote attacker on the local network can wait for user to initiate the device pairing process, 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.
How to mitigate CVE-2026-3555
Install updates from vendor's website.