{"id":"CVE-2026-1679","title":"net: eswifi socket send payload length not bounded","summary":"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 th…","severity":"high","cvss":7.3,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:H","cvssSource":"cna","cwe":["CWE-120"],"vendor":"zephyrproject-rtos","product":"Zephyr","affected":["Zephyr < 4.4.0"],"ssvc":{"exploitation":"poc","automatable":"no","technicalImpact":"partial","timestamp":"2026-04-01T13:51:46.860445Z"},"exploitAvailable":true,"published":"2026-03-27","updated":"2026-10-15","sourceUpdated":"2026-10-15T22:10:22.956Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-1679","references":[{"url":"https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-qx3g-5g22-fq5w"}],"tags":["cve.org","exploit-available"],"epss":0.00215,"epssPercentile":0.11103,"ingestedAt":"2026-10-15T22:48:25.573Z","slug":"CVE-2026-1679","body":"## Overview\n\nThe 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.\n\n## Affected\n\n- `Zephyr < 4.4.0`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"midnight","depthScore":52,"depthScoreParts":{"impact":40.2,"likelihood":0,"exploitation":12,"ransomware":0},"changes":[]}