{"id":"CVE-2026-1679","state":"PUBLISHED","title":"net: eswifi socket send payload length not bounded","description":"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.","publishedAt":"2026-03-27T23:21:18.399Z","updatedAt":"2026-10-15T22:10:22.956Z","severity":{"score":7.3,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:H","source":"zephyr"},"assigner":"zephyr","products":["zephyrproject-rtos Zephyr"],"affected":[{"vendor":"zephyrproject-rtos","product":"Zephyr","packageName":"Zephyr","defaultStatus":"unaffected","versions":[{"version":"*","status":"affected","lessThan":"4.4.0","versionType":"git"}],"repo":"https://github.com/zephyrproject-rtos/zephyr"}],"references":["https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-qx3g-5g22-fq5w"],"weaknesses":["CWE-120"],"ingestedAt":"2026-10-29T20:11:10.572Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/1xxx/CVE-2026-1679.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-1679","state":"PUBLISHED","datePublished":"2026-03-27T23:21:18.399Z","dateUpdated":"2026-10-15T22:10:22.956Z","assignerShortName":"zephyr","assignerOrgId":"e2e69745-5e70-4e92-8431-deb5529a81ad","dateReserved":"2026-01-30T05:53:41.457Z"},"containers":{"cna":{"title":"net: eswifi socket send payload length not bounded","descriptions":[{"lang":"en","value":"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."}],"affected":[{"vendor":"zephyrproject-rtos","product":"Zephyr","packageName":"Zephyr","defaultStatus":"unaffected","versions":[{"version":"*","status":"affected","lessThan":"4.4.0","versionType":"git"}],"repo":"https://github.com/zephyrproject-rtos/zephyr"}],"references":[{"url":"https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-qx3g-5g22-fq5w"}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"LOCAL","availabilityImpact":"HIGH","baseScore":7.3,"baseSeverity":"HIGH","confidentialityImpact":"LOW","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:H","version":"3.1"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-120","description":"Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"zephyr","orgId":"e2e69745-5e70-4e92-8431-deb5529a81ad","dateUpdated":"2026-10-15T22:10:22.956Z"},"source":{"discovery":"UNKNOWN"},"x_generator":{"engine":"Vulnogram 0.1.0-dev"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-04-01T13:51:46.860445Z","id":"CVE-2026-1679","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-04-01T13:52:01.510Z"}}]}}}