CVE-2026-1679
net: eswifi socket send payload length not bounded
CVSS Score
7.3
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-120 |
| Vendor | zephyrproject-rtos |
| Product | zephyr |
| Published | Mar 27, 2026 |
| Last Updated | Apr 1, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:H Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
High
Availability
High
Affected Versions
zephyrproject-rtos / Zephyr
* ≤ 4.3