Heap-based buffer overflow in Nest Labs
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-122 and the CVSS impact.
Summary
An exploitable command execution vulnerability exists in the ASN1 certificate writing functionality of Openweave-core version 4.0.2. A specially crafted weave certificate can trigger a heap-based buffer overflow, resulting in code execution. An attacker can craft a weave certificate to trigger this vulnerability.
Why it matters now
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 |
|---|---|---|---|---|---|
| — | Nest Labs | Nest Labs Openweave-core 4.0.2 | — | No fix listed | CNA |
- Nest Labs Vendor— Affected Nest Labs Openweave-core 4.0.2 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2019-5039
- 2026-10-03 Alias added: GHSA-mqw2-4hpp-cmw6
References
More Openweave-core vulnerabilities
- TI-2019-03501 Stack-based buffer overflow in Nest Labs CVSS 3.1HIGH 8.8
- TI-2019-03503 Integer overflow in Nest Labs CVSS 3.1HIGH 7.5
Sources
- CVE-2019-5039 · CVE Program
- CVE-2019-5039 · NVD
- FIRST EPSS
- GHSA-mqw2-4hpp-cmw6 · GitHub Advisory Database · CC BY 4.0
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