CVE-2026-85080

Authenticated Denial-of-Service in Zigbee GetGroupMembership Handling

Published Oct 22, 2026 CVSS 4.0 · 6 Medium EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Silabs
Silabs emberznet
CPEs cpe:2.3:a:silabs:emberznet:*:*:*:*:*:*:*:*
Vendors & Products Silabs
Silabs emberznet
Metrics cvssV3_1

{'score': 9.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H'}

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Silicon Labs
Silicon Labs emberznet
Vendors & Products Silicon Labs
Silicon Labs emberznet
Type Values Removed Values Added
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.
Title Authenticated Denial-of-Service in Zigbee GetGroupMembership Handling
Weaknesses CWE-121
References
Metrics cvssV4_0

{'score': 6, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
Silabs
Published
Updated
Oct 23, 2026, 10:56 AM
Reserved
Sep 2, 2026, 9:28 PM
Status
Analyzed
Published
Oct 22, 2026, 2:17 PM
Modified
Oct 29, 2026, 1:02 PM