What’s Vulnerable › Vulnerabilities
CVE-2023-51393: Potential DoS due to BusFault and Assert in Ember ZNet legacy packet buffer
- Severity: high (CVSS 7.5 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.5% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2024-02-23 · updated 2026-06-17
- Weakness: CWE-770
Description
Due to an allocation of resources without limits, an uncontrolled resource consumption vulnerability exists in Silicon Labs Ember ZNet SDK prior to v7.4.0.0 (delivered as part of Silicon Labs Gecko SDK v4.4.0) which may enable attackers to trigger a bus fault and crash of the device, requiring a reboot in order to rejoin the network.
Affected products
- Silicon Labs EmberZNet: before 7.4.0 — fixed in 7.4.0
How to fix
Upgrade to a fixed version: Silicon Labs EmberZNet 7.4.0. Check the vendor advisory for mitigations.
References
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