Malformed Zigbee packet causes Assert in EmberZNet 7.0.1 or earlier
Priority MEDIUM 40CWE-119Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-119 and the CVSS impact.
Summary
A malformed packet causes a stack overflow in the Ember ZNet stack. This causes an assert which leads to a reset, immediately clearing the error.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00762 55th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
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 | 1.0.0 – 7.0.1 | — | No fix listed | CNA |
- Ember ZNet Vendorsilabs.com Affected 1.0.0 – 7.0.1 Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:silabs:emberznet:1.0.0:*:*:*:*:*:*:* | 1.0.0 | Vulnerable | silabs.com |
- cpe:2.3:a:silabs:emberznet:1.0.0:*:*:*:*:*:*:* Versions 1.0.0 Vulnerable ·silabs.com
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2022-24938
- 2026-10-03 Alias added: GHSA-3m32-6wcp-37fq
References
More silabs.com Emberznet vulnerabilities
- TI-2023-21716 Touchlink authentication bypass due to packets processed after timeout or out of range in Ember ZNet CVSS 3.1CRITICAL 10.0
- TI-2022-08741 Malformed Zigbee packet causes Assert in EmberZNet 7.0.0 or earlier CVSS 3.1CRITICAL 9.8
- TI-2023-28047 Silicon Labs EFR32xxx parts with classic key storage do not use hardware accelerated AES-CCM CVSS 3.1CRITICAL 9.8
- TI-2023-28049 Potential DoS for EFR32xxx parts in high traffic environments due to null buffer dereference / crash CVSS 3.1HIGH 7.5
- TI-2023-28048 Potential DoS due to BusFault and Assert in Ember ZNet legacy packet buffer CVSS 3.1HIGH 7.5
- TI-2026-34744 Simple Metering GetProfileResponse interval-bounds bug in EmberZNet v9.0.2 CVSS 4.0HIGH 7.1
Sources
- CVE-2022-24938 · CVE Program
- CVE-2022-24938 · NVD
- FIRST EPSS
- GHSA-3m32-6wcp-37fq · GitHub Advisory Database · CC BY 4.0
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