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CVE-2026-85080

9.1, critical

Silicon Labs EmberZNet Stack-based Buffer Overflow Vulnerability

NVD (opens in a new tab) CVE.org (opens in a new tab)
CVSS
9.1, critical critical CVSS v3.1
EPSS, next 30 days
0.5% higher than 39.8% of scored CVEs
Exploitation
No public evidence
Published
22 Oct 20268 days ago

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.

Details

Vendor
Silicon Labs
Product
EmberZNet
Weakness
CWE-121 (opens in a new tab)
Status
Analyzed
Updated
29 Oct 2026
Assigner
product-security@silabs.com

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H

References 1

Advisories 1

The kind is read from NVD's tags where present and from the shape of the URL otherwise, so treat it as a hint.

Other Silicon Labs CVEs

Every Silicon Labs CVE we hold

Same vendor in what we hold, not a known link between the flaws.

  • CVE-2026-85079 Silicon Labs EmberZNet Stack-based Buffer Overflow Vulnerability EPSS 0.3% 9.8, critical
  • CVE-2026-94502 Silicon Labs EmberZNet Stack-based Buffer Overflow Vulnerability EPSS 0.3% 9.8, critical
  • CVE-2026-66281 In EmberZNet 9.1.1 and earlier, a malformed Discover Attributes command can result in a loop with unreachable exit condition (infinite loop) EPSS 0.3% 7.5, high
  • CVE-2026-66282 In EmberZNet 9.1.1 and earlier, a malformed Publish Billing Period command can result in a recursive function call that will never reach… EPSS 0.3% 7.5, high

Beyond this page

Is CVE-2026-85080 in your network?

This page tells you how dangerous CVE-2026-85080 is out there. Whether it sits on one of your devices, only a scan of your own network can tell. That is what our systems do, every day, for the companies we protect.

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Check your exposure

Assembled from the NVD 2.0 API, the CISA Known Exploited Vulnerabilities Catalog and FIRST EPSS. Scores are as of our last collection on 30 Oct 2026, not the live upstream state.