Improper bounds validation in EmberZNet SDK

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-6432
StatePUBLISHED
AssignerSilabs
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-06-25 15:16:42 UTC
Updated2026-10-15 14:17:27 UTC
DescriptionImproper bounds validation in the ZAP command parser of EmberZNet SDK versions 8.0.0 through 9.1.1 (inclusive) and before 7.5.2 (exclusive) may result in crashes or dynamic memory leakage. In order to exploit this vulnerability, an attacker would have to have the ability to send arbitrary messages on the network. The only known exploit of this vulnerability leaks a limited number of bytes from the stack. No denial-of-service, memory corruption, or remote code execution has been shown.

Risk And Classification

Primary CVSS: v4.0 5.3 MEDIUM from [email protected]

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS: 0.003080000 probability, percentile 0.224810000 (date 2026-06-29)

Problem Types: CWE-130 | CWE-130 CWE-130 Improper handling of length parameter inconsistency

VersionSourceTypeScoreSeverityVector
4.0[email protected]Secondary5.3MEDIUMCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/C...
4.0CNACVSS5.3MEDIUMCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

CVSS v4.0 Breakdown

Attack Vector
Network
Attack Complexity
Low
Attack Requirements
None
Privileges Required
Low
User Interaction
None
Confidentiality
Low
Integrity
None
Availability
None
Sub Conf.
None
Sub Integrity
None
Sub Availability
None

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Silicon Labs EmberZNet affected 8.0.0 9.1.1 semver Not specified
CNA Silicon Labs EmberZNet affected 7.5.1 semver Not specified

References

ReferenceSourceLinkTags
github.com/SiliconLabsSoftware/docs-security-advisories/blob/main/Adviso... [email protected] github.com
github.com/SiliconLabsSoftware/sisdk-release MITRE github.com
siliconlabs.lightning.force.com/sfc/servlet.shepherd/document/download/069Vm00000pYDOwIAO MITRE siliconlabs.lightning.force.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Junming C. (@Chapoly1305) and Prof. Qiang Zeng of George Mason University (en)

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