HarborGuard / CVE
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HIGHCVE-2026-1679Published Modified CNA zephyr

CVE-2026-1679: net: eswifi socket send payload length not bounded

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.

Metrics

CVSS v3.1
7.3
Severity
HIGH
Fixed in
—
Affected Products
1
Affected packages
  • zephyrproject-rtos / Zephyr
    ≤ 4.3
CVSS Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:H
References