PT-2026-28314 · Eswifi · Eswifi

Enitmar + 1 · Published 2026-03-27 · Updated 2026-03-28 · CVE-2026-1679

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions eswifi (affected versions not specified)

Description The eswifi socket offload driver copies user-provided payloads into a fixed buffer without checking available space. Oversized sends can overflow eswifi->buf, leading to kernel memory corruption. Exploitation requires local code that can call the socket send API; direct remote access is not possible. The issue involves a lack of bounds checking on the payload length when using the socket send functionality.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Buffer Overflow

Weakness Enumeration

CWE-120

Related Identifiers

CVE-2026-1679

Affected Products

Eswifi

References · 7

• https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-qx3g-5g22-fq5w · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-1679 · Security Note
• https://twitter.com/cyberbivash/status/2037752579191431279 · Twitter Post
• https://twitter.com/CVEnew/status/2037719338485207213 · Twitter Post
• https://twitter.com/cyberbivash/status/2037789405457289306 · Twitter Post
• https://twitter.com/CVEarity/status/2037775546193752301 · Twitter Post
• https://twitter.com/cyberbivash/status/2037722901948887088 · Twitter Post