CVE-2026-1679

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.

Score

CVSS 3.1 7.8 High

Status

Analyzed - vulnerabilities@zephyrproject.org

Published

2026-03-28

Last modified

2026-10-15

Weaknesses

CWE-120

Affected products

• Zephyr (Zephyrproject)
• Zephyr (Zephyrproject-rtos)

References

• https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-qx3g-5g22-fq5w