High 7.1Published Jun 25, 2026

CVE-2026-47147OTA server raw parser missing per-field bounds validation in EmberZNet v9.0.2

Updated under an hour ago (Oct 27, 2026, 9:00 AM ET)

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It affects Silicon Labs EmberZNet and 1 other product. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for Silicon Labs EmberZNet

Exploited in the last 30 days

In EmberZNet v9.0.2 and earlier, malformed OTA requests can drive the OTA server parser into out-of-bounds reads. A limited amount of data from RAM is read back to the requester. The size and location of this data is limited. These requests must come from a device that has already joined the network. Only devices supporting the OTA Server cluster may be impacted.

CVSS: 7.1 HIGH (v4.0, CNA)CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N
Weakness (CWE): CWE-125
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Silabs
NVD analysis: Analyzed
Record last updated: Jun 25, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Silicon Labs EmberZNet silicon_labs:emberznet (from the name)	through 9.0.2	CNA record
silabs emberznet silabs:emberznet	through 9.0.2	NVD

References

References

https://siliconlabs.lightning.force.com/sfc/servlet.shepherd/document/download/069Vm00000pEGPQIA4?operationContext=S1	vendor-advisory, permissions-required
https://github.com/SiliconLabsSoftware/sisdk-release/	patch, not-applicable

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.