Heap-based buffer overflow in silabs.com Gecko Platform
Priority HIGH 82CWE-122Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-122 and the CVSS impact.
Summary
A heap-based buffer overflow vulnerability exists in the HTTP Server functionality of Weston Embedded uC-HTTP git commit 80d4004. A specially crafted network packet can lead to arbitrary code execution. An attacker can send a malicious packet to trigger this vulnerability.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.01746 77th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- Yes
- Technical impact
- Total
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 | Gecko Platform | Silicon Labs Gecko Platform 4.3.2.0 | — | No fix listed | CNA |
| Weston Embedded | uC-HTTP | git commit 80d4004 | — | No fix listed | CNA |
- Gecko Platform Vendorsilabs.com Affected Silicon Labs Gecko Platform 4.3.2.0 Fixed in — No fix listed CNA
- uC-HTTP VendorWeston Embedded Affected git commit 80d4004 Fixed in — No fix listed CNA
CPE configurations NVD · 2
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:silabs:gecko_software_development_kit:4.3.2.0:*:*:*:*:*:*:* | 4.3.2.0 | Vulnerable | silabs.com |
| cpe:2.3:a:weston-embedded:uc-http:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Weston Embedded |
- cpe:2.3:a:silabs:gecko_software_development_kit:4.3.2.0:*:*:*:*:*:*:* Versions 4.3.2.0 Vulnerable ·silabs.com
- cpe:2.3:a:weston-embedded:uc-http:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Weston Embedded
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2023-45318
- 2026-10-03 Alias added: GHSA-j494-r8wx-qpjr
References
More silabs.com Gecko Software Development Kit vulnerabilities
- 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-2023-12937 Memory corruption in silabs.com Gecko Platform CVSS 3.1CRITICAL 9.8
- TI-2023-10642 Heap-based buffer overflow in silabs.com Gecko Platform CVSS 3.1CRITICAL 9.8
- TI-2023-02514 Buffer overflow in silabs.com Gecko Platform CVSS 3.1CRITICAL 9.8
Sources
- CVE-2023-45318 · CVE Program
- CVE-2023-45318 · NVD
- FIRST EPSS
- GHSA-j494-r8wx-qpjr · 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