PatchTheCVECVE-2026-3561: Philips Hue Bridge hk_hap characteristics Heap-based Buffer Overflow Remote Code Execution Vulnerability
CVE-2026-3561 is a high-severity flaw (CVSS 8.0) affecting hue bridge v2 firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
Philips Hue Bridge hk_hap characteristics Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of Philips Hue Bridge. Although authentication is required to exploit this vulnerability, the existing authentication mechanism can be bypassed. The specific flaw exists within the handling of PUT requests to the characteristics endpoint.
Why this priority
- High severity
A fixed release or distro patch exists.
Risk facts
| CVSS score | 8.0 (High) |
| Attack vector | Adjacent network |
| Attack complexity | Low |
| Privileges needed | Low |
| User interaction | None |
| EPSS exploit chance | 0.6% (top 50%) |
| CISA exploited list | No |
| Weakness | CWE-122 |
| Published | 2026-03-16 |
| Last modified | 2026-06-17 |
Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2026-3561?
hue bridge v2 firmware: upgrade to 1975170000. Exact commands for each OS are on this page.
Is CVE-2026-3561 being exploited?
CVE-2026-3561 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2026-3561 affect?
CVE-2026-3561 affects hue bridge v2 firmware. Severity is high (CVSS 8.0). Philips Hue Bridge hk_hap characteristics Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of Philips Hue Bridge. Althou
How urgent is CVE-2026-3561?
Priority 40/100. High severity
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