Philips Hue Bridge HomeKit Accessory Protocol Static Nonce Authentication Bypass…
Key facts
- Attack vector
- Adjacent network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · None
- Fix status
- No fix listed
Attack profile from CVSS 3.0 · CNA. Fix status from CNA.
Summary
Philips Hue Bridge HomeKit Accessory Protocol Static Nonce Authentication Bypass Vulnerability. This vulnerability allows network-adjacent attackers to bypass authentication on affected installations of Philips Hue Bridge. Authentication is not required to exploit this vulnerability. The specific flaw exists within the configuration of the SRP authentication mechanism in the HomeKit Accessory Protocol service, which listens on TCP port 8080 by default. The issue results from the use of a static nonce value. An attacker can leverage this vulnerability to bypass authentication on the system. Was ZDI-CAN-28451.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Philips | Hue Bridge | 1.73.1973146020 | — | No fix listed | CNA |
- Hue Bridge VendorPhilips Affected 1.73.1973146020 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-3559
- 2026-10-03 Alias added: GHSA-393c-jhgx-p674
References
Advisory 1
More Philips Hue Bridge V2 Firmware vulnerabilities
- TI-2026-03070 Heap-based buffer overflow in Philips Hue Bridge CVSS 3.0HIGH 8.8
- TI-2026-03066 Heap-based buffer overflow in Philips Hue Bridge CVSS 3.0HIGH 8.8
- TI-2020-04908 Heap-based buffer overflow in Philips Hue Bridge 2.X CVSS 3.1HIGH 7.9
- TI-2026-03072 Improper signature verification in Philips Hue Bridge CVSS 3.1HIGH 8.8
- TI-2026-03071 Heap-based buffer overflow in Philips Hue Bridge CVSS 3.0HIGH 8.0
- TI-2026-03068 Missing authentication in Philips Hue Bridge CVSS 3.0HIGH 8.1
Sources
- CVE-2026-3559 · CVE Program
- CVE-2026-3559 · NVD
- FIRST EPSS
- GHSA-393c-jhgx-p674 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences