# CVE-2026-94502: Silicon Labs EmberZNet out-of-bounds write in Price cluster

Source: https://junglewise.ai/threats/cve-2026-94502-in-emberznet-9-1-1-and-earlier-a-malformed-publish-price-matrix  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-22. Updated: 2026-10-22  
License: CC BY 4.0 with a link back

CVE-2026-94502 · Severity: info · Published 2026-10-22

EmberZNet is a software development kit for Zigbee networking devices. A malformed Publish Price Matrix command can cause an out-of-bounds write vulnerability, potentially leading to remote code execution on devices that support the Price Cluster and have already joined a Zigbee network. An attacker already on the network can send a specially crafted command to compromise affected devices.

Technologies: [Silicon Labs EmberZNet](https://junglewise.ai/threats/technologies/emberznet), [Silicon Labs SiSDK](https://junglewise.ai/threats/technologies/sisdk). Vendors: [Silicon Labs](https://junglewise.ai/threats/vendors/silicon-labs).

## Quick answers

**Is CVE-2026-94502 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-94502 being exploited in the wild.

**How severe is CVE-2026-94502?** Informational severity, published 22 October 2026.

**Which products and versions are affected?** Silicon Labs EmberZNet 9.1.1 and earlier; Silicon Labs SiSDK 2026.6.1 and earlier.

**Is there a fix for CVE-2026-94502?** Yes: fixed in SiSDK 2026.6.2 or later; no fix available for GSDK at this time. Until then: Enable the "Platform > Security > Memory Protection Unit > Simple MPU" component in Simplicity Studio to configure the Memory Protection Unit to make RAM non-executable and prevent code injection attacks. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-94502 attacked?** It is attacked from the adjacent network.

**Am I affected by CVE-2026-94502?** Check whether you run Silicon Labs EmberZNet or Silicon Labs SiSDK at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- Fixed in SiSDK 2026.6.2 or later; no fix available for GSDK at this time

Enable the "Platform > Security > Memory Protection Unit > Simple MPU" component in Simplicity Studio to configure the Memory Protection Unit to make RAM non-executable and prevent code injection attacks.

## Technical details

An out-of-bounds write vulnerability exists in the handling of Publish Price Matrix commands in EmberZNet's Price Cluster implementation. The attack requires the attacker to already be on the network as a server and the target device to support the Price Cluster; remote code execution is possible if execution from RAM is not disabled. The vulnerability can be mitigated by enabling the Memory Protection Unit component to make RAM non-executable.

## Affected products

- Silicon Labs EmberZNet 9.1.1 and earlier
- Silicon Labs SiSDK 2026.6.1 and earlier

## Timeline

- 2026-10-22: disclosed

## References

- [https://github.com/SiliconLabsSoftware/docs-security-advisories/blob/main/Advisories/500-599/A-00000589.md](https://github.com/SiliconLabsSoftware/docs-security-advisories/blob/main/Advisories/500-599/A-00000589.md)

## Related threats

- [Silicon Labs EmberZNet out-of-bounds write in Group Cluster](https://junglewise.ai/threats/cve-2026-85080-in-emberznet-9-1-1-and-earlier-a-malformed-getgroupmembership)
- [Silicon Labs EmberZNet out-of-bounds write in Simple_Desc_req](https://junglewise.ai/threats/cve-2026-85079-in-emberznet-9-1-1-and-earlier-a-malformed-simple-desc-req)
- [Silicon Labs EmberZNet denial-of-service in Price Cluster](https://junglewise.ai/threats/cve-2026-66282-in-emberznet-9-1-1-and-earlier-a-malformed-publish-billing-period)
- [Silicon Labs EmberZNet denial-of-service in Discover Attributes](https://junglewise.ai/threats/cve-2026-66281-in-emberznet-9-1-1-and-earlier-a-malformed-discover-attributes)
- [Silicon Labs SiSDK denial of service in multiprotocol mode](https://junglewise.ai/threats/cve-2026-17610-silicon-labs-sisdk-denial-of-service-in-multiprotocol-mode)