CVE-2026-47147 | In EmberZNet v9.0.2 and earlier, malformed OTA requests can … | CVSS 7.1 HIGH

Description

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.

Metadata

CVE ID: CVE-2026-47147
State: PUBLISHED
Assigner: Silabs
Reserved: 2026-05-18 20:02 UTC
Published: 2026-06-25 13:36 UTC
Last updated: 2026-06-25 14:15 UTC
Primary CWE: CWE-125
CWE-125: Out-of-bounds Read
Vendor / Product: Silicon Labs / EmberZNet
Sources: cve.org · NVD

Severity & Metrics

7.1 HIGH CVSS 4.0

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

SSVC — CISA Coordinator

Exploitation: none
Automatable: yes
Tech. Impact: partial

Affected products (1)

Vendor	Product	Platform	Versions
Silicon Labs	EmberZNet	—	0 ≤ 9.0.2

Weakness (CWE)

CWE	Source	Description
CWE-125	cna	CWE-125: Out-of-bounds Read

CVSS scores (1)

Score	Severity	Version	Source	Vector
7.1	HIGH	4.0	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

References (2)