Medium · CVSS 6.0CVE-2026-85080

Authenticated Denial-of-Service in Zigbee GetGroupMembership HandlingCVE-2026-85080

Answer in brief

CVE-2026-85080 records a Medium severity (CVSS 6.0) vulnerability in Authenticated Denial-of-Service in Zigbee GetGroupMembership Handling. The current sources do not mark it as known exploited. The current feed maps Silicon Labs/EmberZNet (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Oct 22, 2026Updated Oct 22, 2026Source checked Oct 22, 2026First seen by HOL Oct 22, 2026Material review Oct 22, 2026

Upstream Advisory

Key facts

Risk: Medium · CVSS 6.0
Exploitation: Not marked as known exploited
Affected software: 1 mapped package or product
Fix availability: Not reported

Why this deserves its current priority

CVSS is 6.0. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Silicon Labs/EmberZNet (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
Silicon Labs/EmberZNetgeneric	>=0 <=9.1.1	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for Silicon Labs/EmberZNet.
Review the reported fix. Monitor this advisory for an available fix and review any installs of the affected package.

Evidence timeline and material changes

Published upstream
Oct 22, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Oct 22, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Oct 22, 2026

Sources and claim methodology

GitHub security advisorygithub.com

Upstream source description

In EmberZNet 9.1.1 and earlier, a malformed GetGroupMembership message can result in an out-of-bounds write leading to a crash. A limited number of values can be written using this vulnerability, so no route to remote code execution was observed. These messages must come from a device that has already joined the network. Only devices supporting the Group Cluster are impacted.

Quoted source text, attributed separately from HOL analysis.