Heap-based Buffer Overflow Vulnerability in Philips Hue Bridge
CVE-2026-3557

8HIGH

Key Information:

Vendor

Philips
Status
Hue Bridge
Vendor
CVE Published:
13 March 2026

What is CVE-2026-3557?

This vulnerability impacts Philips Hue Bridge through the hap_pair_verify_handler function within the hk_hap service, which operates on TCP port 8080. It arises due to insufficient validation of user-supplied data length before it is copied into a heap-based buffer. As a result, network-adjacent attackers, after gaining authentication, can potentially bypass existing mechanisms and execute arbitrary code within the system, posing significant risks to users' smart home environments.

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Affected Version(s)

Hue Bridge 1.73.1973146020

References

https://www.zerodayinitiative.com/advisories/ZDI-26-155/
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CVSS V3.0

Score:
8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Adjacent Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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