CVE-2026-1679
net: eswifi socket send payload length not bounded
- State
- Published
- Severity
- 7.3 High
- Published
- Mar 27, 2026
- Updated
- Oct 15, 2026
- Reserved
- Jan 30, 2026
Description
The eswifi socket offload driver copies user-provided payloads into a fixed buffer without checking available space; oversized sends overflow `eswifi->buf`, corrupting kernel memory (CWE-120). Exploit requires local code that can call the socket send API; no remote attacker can reach it directly.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 7.3 High | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:H | zephyr |
Weaknesses
- CWE-120 Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
Affected Products
| Product | Versions |
|---|---|
Zephyrzephyrproject-rtos |
|
References
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