{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-09-29T21:10:49.999","vulnerabilities":[{"cve":{"id":"CVE-2026-5590","sourceIdentifier":"vulnerabilities@zephyrproject.org","published":"2026-04-05T04:16:16.370","lastModified":"2026-07-24T20:10:00.147","vulnStatus":"Analyzed","cveTags":[],"descriptions":[{"lang":"en","value":"A race condition during TCP connection teardown can cause tcp_recv() to operate on a connection that has already been released. If tcp_conn_search() returns NULL while processing a SYN packet, a NULL pointer derived from stale context data is passed to tcp_backlog_is_full() and dereferenced without validation, leading to a crash."},{"lang":"es","value":"Una condición de carrera durante el cierre de una conexión TCP puede hacer que tcp_recv() opere sobre una conexión que ya ha sido liberada. Si tcp_conn_search() devuelve NULL mientras procesa un paquete SYN, un puntero NULL derivado de datos de contexto obsoletos se pasa a tcp_backlog_is_full() y se desreferencia sin validación, lo que lleva a un fallo."}],"affected":[{"source":"vulnerabilities@zephyrproject.org","affectedData":[{"vendor":"zephyrproject-rtos","product":"Zephyr","defaultStatus":"unaffected","packageName":"Zephyr","repo":"https://github.com/zephyrproject-rtos/zephyr","versions":[{"version":"*","lessThanOrEqual":"4.3","versionType":"git","status":"affected"}]}]}],"metrics":{"cvssMetricV31":[{"source":"vulnerabilities@zephyrproject.org","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:H","baseScore":6.4,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"HIGH","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"LOW","integrityImpact":"LOW","availabilityImpact":"HIGH"},"exploitabilityScore":1.6,"impactScore":4.7},{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H","baseScore":5.3,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"HIGH","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":1.6,"impactScore":3.6}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2026-04-06T14:21:53.207121Z","id":"CVE-2026-5590","options":[{"exploitation":"none"},{"automatable":"no"},{"technicalImpact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"weaknesses":[{"source":"vulnerabilities@zephyrproject.org","type":"Secondary","description":[{"lang":"en","value":"CWE-476"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:zephyrproject:zephyr:*:*:*:*:*:*:*:*","versionEndIncluding":"4.3.0","matchCriteriaId":"7D912614-A39E-4C9B-AA54-187BC26337B9"}]}]}],"references":[{"url":"https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-4vqm-pw24-g9jp","source":"vulnerabilities@zephyrproject.org","tags":["Exploit","Patch","Vendor Advisory"]}]}}]}