{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-06-24T02:51:59.563","vulnerabilities":[{"cve":{"id":"CVE-2025-66038","sourceIdentifier":"security-advisories@github.com","published":"2026-03-30T18:16:18.177","lastModified":"2026-06-17T09:56:13.423","vulnStatus":"Analyzed","cveTags":[],"descriptions":[{"lang":"en","value":"OpenSC is an open source smart card tools and middleware. Prior to version 0.27.0, sc_compacttlv_find_tag searches a compact-TLV buffer for a given tag. In compact-TLV, a single byte encodes the tag (high nibble) and value length (low nibble). With a 1-byte buffer {0x0A}, the encoded element claims tag=0 and length=10 but no value bytes follow. Calling sc_compacttlv_find_tag with search tag 0x00 returns a pointer equal to buf+1 and outlen=10 without verifying that the claimed value length fits within the remaining buffer. In cases where the sc_compacttlv_find_tag is provided untrusted data (such as being read from cards/files), attackers may be able to influence it to return out-of-bounds pointers leading to downstream memory corruption when subsequent code tries to dereference the pointer. This issue has been patched in version 0.27.0."},{"lang":"es","value":"OpenSC es un conjunto de herramientas y middleware de código abierto para tarjetas inteligentes. Antes de la versión 0.27.0, sc_compacttlv_find_tag busca una etiqueta dada en un búfer compact-TLV. En compact-TLV, un solo byte codifica la etiqueta (nibble superior) y la longitud del valor (nibble inferior). Con un búfer de 1 byte {0x0A}, el elemento codificado declara etiqueta=0 y longitud=10 pero no le siguen bytes de valor. Llamar a sc_compacttlv_find_tag con la etiqueta de búsqueda 0x00 devuelve un puntero igual a buf+1 y outlen=10 sin verificar que la longitud de valor declarada cabe dentro del búfer restante. En los casos en que a sc_compacttlv_find_tag se le proporcionan datos no confiables (como los leídos de tarjetas/archivos), los atacantes pueden influir en ella para que devuelva punteros fuera de los límites, lo que lleva a una corrupción de memoria posterior cuando el código subsiguiente intenta desreferenciar el puntero. Este problema ha sido corregido en la versión 0.27.0."}],"affected":[{"source":"security-advisories@github.com","affectedData":[{"vendor":"OpenSC","product":"OpenSC","versions":[{"version":"< 0.27.0","status":"affected"}]}]}],"metrics":{"cvssMetricV31":[{"source":"security-advisories@github.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L","baseScore":3.9,"baseSeverity":"LOW","attackVector":"PHYSICAL","attackComplexity":"HIGH","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"LOW","integrityImpact":"LOW","availabilityImpact":"LOW"},"exploitabilityScore":0.5,"impactScore":3.4},{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","baseScore":6.8,"baseSeverity":"MEDIUM","attackVector":"PHYSICAL","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"},"exploitabilityScore":0.9,"impactScore":5.9}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2026-04-01T18:15:18.318069Z","id":"CVE-2025-66038","options":[{"exploitation":"poc"},{"automatable":"no"},{"technicalImpact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"weaknesses":[{"source":"security-advisories@github.com","type":"Secondary","description":[{"lang":"en","value":"CWE-126"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:opensc_project:opensc:*:*:*:*:*:*:*:*","versionEndExcluding":"0.27.0","matchCriteriaId":"D890677F-5379-4587-B8E7-D38B02AD525A"}]}]}],"references":[{"url":"https://github.com/OpenSC/OpenSC/commit/6db171bcb6fd7cb3b51098fefbb3b28e44f0a79c","source":"security-advisories@github.com","tags":["Patch"]},{"url":"https://github.com/OpenSC/OpenSC/security/advisories/GHSA-72x5-fwjx-2459","source":"security-advisories@github.com","tags":["Exploit","Vendor Advisory"]},{"url":"https://github.com/OpenSC/OpenSC/wiki/CVE-2025-66038","source":"security-advisories@github.com","tags":["Vendor Advisory"]}]}}]}