TI-2026-79285 Aliases CVE-2026-94502 GHSA-88mg-4rp6-8rpq

Out-of-bounds write in Zigbee Publish Price Matrix handling

LOW 36CWE-121Published 2026-10-22 · Updated 2026-10-23

Key facts

Attack vector: Adjacent network
Privileges required: Low
User interaction: None
Attack complexity: Low
Attack requirements: Present
Impact type: Code execution
Confidentiality · integrity · availability: High · High · High
Fix status: No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-121 and the CVSS impact.

Summary

Silicon Labs EmberZNet versions through 9.1.1 contain an out-of-bounds write triggered by a malformed Publish Price Matrix command in the Zigbee stack. The flaw is classified as a stack-based buffer overflow (CWE-121). The attacker must already be joined to the network, and only devices supporting the Price Cluster are impacted. Successful exploitation can potentially lead to remote code execution.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Description from the CNA

In EmberZNet 9.1.1 and earlier, a malformed Publish Price Matrix command can result in an out-of-bounds write potentially leading to remote code execution. These messages must come from a device that has already joined the network. Only devices supporting the Price Cluster are impacted.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00655 51st percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
silabs.com	EmberZNet	up to 9.1.1	—	No fix listed	CNA

EmberZNet Vendorsilabs.com Affected up to 9.1.1 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:silabs:emberznet::::::::	up to 9.1.1	Vulnerable	silabs.com

cpe:2.3:a:silabs:emberznet:*:*:*:*:*:*:*:* Versions up to 9.1.1 Vulnerable ·silabs.com

Remediation

The sources list no fixed version for EmberZNet.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

Advisory · 2026-10-22
Silicon Labs EmberZNet — github.com/SiliconLabsSoftware/docs-security-advisories/blo…
2 records Highest priority Priority LOW 2 LOW
Other records, highest priority first
- TI-2026-79280 Out-of-bounds write in Zigbee Simple_Desc_req handlingPriority LOW 36
Show all 2 records → Advisory →

Timeline

2026-10-22 Threatist record created from CVE-2026-94502
2026-10-22 Alias added: GHSA-88mg-4rp6-8rpq
2026-10-23 CISA SSVC decision points changed
2026-10-23 Priority changed: MEDIUM → LOW
2026-10-29 CVSS score added · NVD
2026-10-30 EPSS moved to the 50th–90th percentile

References

Patch 1

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

TI-2023-21716 Touchlink authentication bypass due to packets processed after timeout or out of range in Ember ZNet CVSS 3.1CRITICAL 10.0
TI-2022-08741 Malformed Zigbee packet causes Assert in EmberZNet 7.0.0 or earlier CVSS 3.1CRITICAL 9.8
TI-2023-28047 Silicon Labs EFR32xxx parts with classic key storage do not use hardware accelerated AES-CCM CVSS 3.1CRITICAL 9.8
TI-2022-08742 Malformed Zigbee packet causes Assert in EmberZNet 7.0.1 or earlier CVSS 3.1HIGH 7.5
TI-2023-28049 Potential DoS for EFR32xxx parts in high traffic environments due to null buffer dereference / crash CVSS 3.1HIGH 7.5
TI-2023-28048 Potential DoS due to BusFault and Assert in Ember ZNet legacy packet buffer CVSS 3.1HIGH 7.5

See all 21 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences