{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-04-20T16:49:15.181","vulnerabilities":[{"cve":{"id":"CVE-2023-38320","sourceIdentifier":"cve@mitre.org","published":"2023-11-17T06:15:33.667","lastModified":"2024-11-21T08:13:19.533","vulnStatus":"Modified","cveTags":[],"descriptions":[{"lang":"en","value":"An issue was discovered in OpenNDS Captive Portal before version 10.1.2. It has a show_preauthpage NULL pointer dereference that can be triggered with a crafted GET HTTP with a missing User-Agent header. Triggering this issue results in crashing OpenNDS (a Denial-of-Service condition). This problem was fixed in OpenWrt master, OpenWrt 23.05 and OpenWrt 22.03 on 28. August 2023 by updating OpenNDS to version 10.1.3."},{"lang":"es","value":"Se descubrió un problema en OpenNDS Captive Portal antes de la versión 10.1.2. Tiene una desreferencia del puntero NULL show_preauthpage que se puede activar con un GET HTTP manipulado al que le falta un encabezado User-Agent. La activación de este problema provoca el bloqueo de OpenNDS (una condición de denegación de servicio)."}],"metrics":{"cvssMetricV31":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","baseScore":7.5,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":3.9,"impactScore":3.6}]},"weaknesses":[{"source":"nvd@nist.gov","type":"Primary","description":[{"lang":"en","value":"CWE-476"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:opennds:captive_portal:*:*:*:*:*:*:*:*","versionEndExcluding":"10.1.2","matchCriteriaId":"41C7501E-5FCE-4728-A6DC-9DD6C0468496"}]}]}],"references":[{"url":"https://github.com/openNDS/openNDS/releases/tag/v10.1.2","source":"cve@mitre.org","tags":["Release Notes","Vendor Advisory"]},{"url":"https://github.com/openwrt/routing/commit/0b19771fb2dd81e7c428759610aed583171eed80","source":"cve@mitre.org"},{"url":"https://source.sierrawireless.com/resources/security-bulletins/sierra-wireless-technical-bulletin---swi-psa-2023-006/#sthash.2vJg3d85.dpbs","source":"cve@mitre.org"},{"url":"https://github.com/openNDS/openNDS/releases/tag/v10.1.2","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Release Notes","Vendor Advisory"]},{"url":"https://github.com/openwrt/routing/commit/0b19771fb2dd81e7c428759610aed583171eed80","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://source.sierrawireless.com/resources/security-bulletins/sierra-wireless-technical-bulletin---swi-psa-2023-006/#sthash.2vJg3d85.dpbs","source":"af854a3a-2127-422b-91ae-364da2661108"}]}}]}