CVE-2026-3556 is a critical heap-based buffer overflow vulnerability affecting Philips Hue Bridge devices, specifically within the HomeKit Pair-Setup function. This flaw allows network-adjacent attackers to execute arbitrary code without authentication, stemming from improper validation of user-supplied data length. With a CVSSv3 score of 8.8 (High), its severity is due to an unauthenticated, low-complexity attack vector that can lead to full compromise of the HomeKit service. While there is no public exploit code or evidence of active exploitation (KEV: No), the vulnerability has garnered some community discussion, indicating awareness.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 1975170000CPE matchmatch criteria | cpe:2.3:o:philips:hue_bridge_v2_firmware:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.0
CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.2 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.