Double free in Weston Embedded uC-TCP-IP
Priority HIGH 74CWE-415Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA.
Summary
A double-free vulnerability exists in the IP header loopback parsing functionality of Weston Embedded uC-TCP-IP v3.06.01. A specially crafted set of network packets can lead to memory corruption, potentially resulting in code execution. An attacker can send a sequence of unauthenticated packets to trigger this vulnerability.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.01081 65th 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
- No
- 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 |
|---|---|---|---|---|---|
| Weston Embedded | uC-TCP-IP | v3.06.01 | — | No fix listed | CNA |
- uC-TCP-IP VendorWeston Embedded Affected v3.06.01 Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:weston-embedded:uc-tcp-ip:3.06.01:*:*:*:*:*:*:* | 3.06.01 | Vulnerable | Weston Embedded |
- cpe:2.3:a:weston-embedded:uc-tcp-ip:3.06.01:*:*:*:*:*:*:* Versions 3.06.01 Vulnerable ·Weston Embedded
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2023-38562
- 2026-10-03 Alias added: GHSA-43mr-mm46-m2qq
References
More Weston Embedded Uc-tcp-ip vulnerabilities
- TI-2023-20673 Out-of-bounds read in silabs.com Gecko Platform CVSS 3.1MEDIUM 5.9
- TI-2023-20672 Out-of-bounds read in silabs.com Gecko Platform CVSS 3.1MEDIUM 5.9
Sources
- CVE-2023-38562 · CVE Program
- CVE-2023-38562 · NVD
- FIRST EPSS
- GHSA-43mr-mm46-m2qq · GitHub Advisory Database · CC BY 4.0
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