Zigbee co-ordinator realignment packet may lead to denial of service
Priority LOW 39CWE-829Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-829.
Summary
An unauthenticated IEEE 802.15.4 'co-ordinator realignment' packet can be used to force Zigbee nodes to change their network identifier (pan ID), leading to a denial of service. This packet type is not useful in production and should be used only for PHY qualification.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.0053 45th percentileScored 2026-11-07
Fix Fixed Ember ZNet SDK (silabs.com): 8.0.0
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| silabs.com | Ember ZNet SDK | before 8.0.0 | 8.0.0 | Patch available | CNA |
- Ember ZNet SDK Vendorsilabs.com Affected before 8.0.0 Fixed in 8.0.0 Patch available CNA
CPE names CISA-ADP · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:silabs:emberznet_sdk:*:*:*:*:*:*:*:* | — | — | silabs.com |
- cpe:2.3:a:silabs:emberznet_sdk:*:*:*:*:*:*:*:* Versions — — ·silabs.com
Remediation
- Fix · CNA Ember ZNet SDK (silabs.com) Fixed in 8.0.0
Timeline
- 2026-10-02 Threatist record created from CVE-2024-3043
- 2026-10-03 Alias added: GHSA-44x3-2gc7-3w5m
References
More silabs.com vulnerabilities
- TI-2023-24288 Heap-based buffer overflow in silabs.com Gecko Platform CVSS 3.1CRITICAL 10.0
- TI-2023-14952 Memory corruption in silabs.com Gecko Platform CVSS 3.1CRITICAL 9.8
- TI-2023-12925 Memory corruption in silabs.com Gecko Platform CVSS 3.1CRITICAL 9.8
- TI-2023-12476 Heap-based buffer overflow in silabs.com Gecko Platform CVSS 3.1CRITICAL 9.8
- TI-2022-08744 Heap-based buffer overflow in MicriumOS HTTP Server allows potential remote code execution CVSS 3.1CRITICAL 9.8
- TI-2023-12937 Memory corruption in silabs.com Gecko Platform CVSS 3.1CRITICAL 9.8
Sources
- CVE-2024-3043 · CVE Program
- CVE-2024-3043 · NVD
- FIRST EPSS
- GHSA-44x3-2gc7-3w5m · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences