Memory leak in wpanctl can lead to DoS
Priority LOW 24CWE-401Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-401.
Summary
A memory leak in Openthread's wpantund versions up to commit 0e5d1601febb869f583e944785e5685c6c747be7, when used in an environment where wpanctl is directly interfacing with the control driver (eg: debug environments) can allow an attacker to crash the service (DoS). We recommend updating, or to restrict access in your debug environments.
Why it matters now
EPSS 0.00266 18th percentileScored 2026-11-07
Fix Fixed wpantund (Google LLC): 0e5d1601febb869f583e944785e5685c6c747be7
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| wpantund | stable to before 0e5d1601febb869f583e944785e5685c6c747be7 | 0e5d1601febb869f583e944785e5685c6c747be7 | Patch available | CNA |
- wpantund VendorGoogle Affected stable to before 0e5d1601febb869f583e944785e5685c6c747be7 Fixed in 0e5d1601febb869f583e944785e5685c6c747be7 Patch available CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:openthread:wpantund:*:*:*:*:*:*:*:* | up to 2020-05-28 | Vulnerable | Openthread |
- cpe:2.3:a:openthread:wpantund:*:*:*:*:*:*:*:* Versions up to 2020-05-28 Vulnerable ·Openthread
Remediation
- Fix · CNA wpantund (Google LLC) Fixed in 0e5d1601febb869f583e944785e5685c6c747be7
Timeline
- 2026-10-02 Threatist record created from CVE-2020-8916
- 2026-10-03 Alias added: GHSA-9wq6-g8c9-8c8w
References
More Google vulnerabilities
- TI-2025-09686 Type confusion in Google Chrome KEVCVSS 3.1CRITICAL 9.8
- TI-2024-07390 Type confusion in Google Chrome KEVCVSS 3.1CRITICAL 9.6
- TI-2024-04898 Type confusion in Google Chrome KEVCVSS 3.1CRITICAL 9.6
- TI-2024-04600 Type confusion in Google Chrome KEVCVSS 3.1CRITICAL 9.6
- TI-2024-04346 Use after free in Google Chrome KEVCVSS 3.1CRITICAL 9.6
- TI-2023-05824 Integer overflow in Google Chrome KEVCVSS 3.1CRITICAL 9.6
Sources
- CVE-2020-8916 · CVE Program
- CVE-2020-8916 · NVD
- FIRST EPSS
- GHSA-9wq6-g8c9-8c8w · 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