Vulnerability · Published Oct 22, 2026 · Assigned by Silabs
CVE-2026-85079Out-of-bounds write in Zigbee Simple_Desc_req handling
High 7.5
In plain English
A high-severity stack buffer overflow in EmberZNet from Silicon Labs. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.7% (higher than 52% of all known vulnerabilities).
Severity (CVSS 4.0)7.5High
Exploit odds (30 days)0.7%top 48.4% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official 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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Silicon Labs | EmberZNet | 0 – through 9.1.1 |
Weakness: CWE-121 · Vector: CVSS:4.0/AV:A/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N