High · CVSS 7.5CVE-2026-85079

Out-of-bounds write in Zigbee Simple_Desc_req handlingCVE-2026-85079

Answer in brief

CVE-2026-85079 records a High severity (CVSS 7.5) vulnerability in Out-of-bounds write in Zigbee Simple_Desc_req 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: High · CVSS 7.5
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 7.5. 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 Simple_Desc_req response can result in an out-of-bounds write potentially leading to remote code execution. This response must come from a device that has already joined the network, and the attacker must wait for a Simple_Desc_req before the attack can be performed.

Quoted source text, attributed separately from HOL analysis.