{"id":"CVE-2026-1679","title":"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)","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","cwe":["CWE-120"],"vendor":"zephyrproject","product":"zephyr","affected":["zephyr <= 4.3.0"],"published":"2026-03-28","updated":"2026-10-15","sourceUpdated":"2026-10-15T23:17:36.300","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-1679","references":[{"url":"https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-qx3g-5g22-fq5w","label":"vulnerabilities@zephyrproject.org"}],"tags":["nvd","cve.org","exploit-available"],"epss":0.00219,"epssPercentile":0.12309,"exploitAvailable":true,"ssvc":{"exploitation":"poc","automatable":"no","technicalImpact":"partial","timestamp":"2026-04-01T13:51:46.860445Z"},"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 <= 4.3.0`\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":[]}