{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-04-19T13:34:38.111","vulnerabilities":[{"cve":{"id":"CVE-2026-25532","sourceIdentifier":"security-advisories@github.com","published":"2026-02-04T18:16:09.747","lastModified":"2026-02-20T17:13:48.680","vulnStatus":"Analyzed","cveTags":[],"descriptions":[{"lang":"en","value":"ESF-IDF is the Espressif Internet of Things (IOT) Development Framework. In versions 5.5.2, 5.4.3, 5.3.4, 5.2.6, and 5.1.6, a vulnerability exists in the WPS (Wi-Fi Protected Setup) Enrollee implementation where malformed EAP-WSC packets with truncated payloads can cause integer underflow during fragment length calculation. When processing EAP-Expanded (WSC) messages, the code computes frag_len by subtracting header sizes from the total packet length. If an attacker sends a packet where the EAP Length field covers only the header and flags but omits the expected payload (such as the 2-byte Message Length field when WPS_MSG_FLAG_LEN is set), frag_len becomes negative. This negative value is then implicitly cast to size_t when passed to wpabuf_put_data(), resulting in a very large unsigned value. This issue has been patched in versions 5.5.3, 5.4.4, 5.3.5, 5.2.7, and 5.1.7."},{"lang":"es","value":"ESF-IDF es el Framework de Desarrollo de Internet de las Cosas (IoT) de Espressif. En las versiones 5.5.2, 5.4.3, 5.3.4, 5.2.6 y 5.1.6, existe una vulnerabilidad en la implementación de Enrollee de WPS (Wi-Fi Protected Setup) donde paquetes EAP-WSC malformados con cargas útiles truncadas pueden causar un desbordamiento negativo de enteros (integer underflow) durante el cálculo de la longitud del fragmento. Al procesar mensajes EAP-Expanded (WSC), el código calcula frag_len restando los tamaños de las cabeceras de la longitud total del paquete. Si un atacante envía un paquete donde el campo EAP Length cubre solo la cabecera y las banderas (flags) pero omite la carga útil esperada (como el campo Message Length de 2 bytes cuando WPS_MSG_FLAG_LEN está configurado), frag_len se vuelve negativo. Este valor negativo se convierte implícitamente a size_t cuando se pasa a wpabuf_put_data(), lo que resulta en un valor sin signo muy grande. Este problema ha sido parcheado en las versiones 5.5.3, 5.4.4, 5.3.5, 5.2.7 y 5.1.7."}],"metrics":{"cvssMetricV31":[{"source":"security-advisories@github.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H","baseScore":6.3,"baseSeverity":"MEDIUM","attackVector":"ADJACENT_NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"REQUIRED","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"LOW","availabilityImpact":"HIGH"},"exploitabilityScore":2.1,"impactScore":4.2},{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","baseScore":8.0,"baseSeverity":"HIGH","attackVector":"ADJACENT_NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"REQUIRED","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"},"exploitabilityScore":2.1,"impactScore":5.9}]},"weaknesses":[{"source":"security-advisories@github.com","type":"Primary","description":[{"lang":"en","value":"CWE-191"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:espressif:esp-idf:5.1.6:*:*:*:*:*:*:*","matchCriteriaId":"90D991F0-A03E-44CF-9187-75897399797A"},{"vulnerable":true,"criteria":"cpe:2.3:a:espressif:esp-idf:5.2.6:*:*:*:*:*:*:*","matchCriteriaId":"37A040C2-E9D4-4678-9A10-74B5AEE4901D"},{"vulnerable":true,"criteria":"cpe:2.3:a:espressif:esp-idf:5.3.4:*:*:*:*:*:*:*","matchCriteriaId":"AA4D9168-C8C1-4B1A-81C3-D4888DB36CAE"},{"vulnerable":true,"criteria":"cpe:2.3:a:espressif:esp-idf:5.4.3:*:*:*:*:*:*:*","matchCriteriaId":"7CA4F443-03D3-4B10-909E-A813F72BC08C"},{"vulnerable":true,"criteria":"cpe:2.3:a:espressif:esp-idf:5.5.2:*:*:*:*:*:*:*","matchCriteriaId":"43489143-3F90-42E6-B75F-78CBEAD09C4D"}]}]}],"references":[{"url":"https://github.com/espressif/esp-idf/commit/60f992a26de17bb5406f2149a2f8282dd7ad1c59","source":"security-advisories@github.com","tags":["Patch"]},{"url":"https://github.com/espressif/esp-idf/commit/6f6766f917bc940ffbcc97eac4765a6ab15d5f79","source":"security-advisories@github.com","tags":["Patch"]},{"url":"https://github.com/espressif/esp-idf/commit/73a587d42a57ece1962b6a4c530b574600650f63","source":"security-advisories@github.com","tags":["Patch"]},{"url":"https://github.com/espressif/esp-idf/commit/b209fae993d795255827ce6b2b0d6942a377f5d4","source":"security-advisories@github.com","tags":["Patch"]},{"url":"https://github.com/espressif/esp-idf/commit/b88befde6b5addcdd8d7373ce55c8052dea1e855","source":"security-advisories@github.com","tags":["Patch"]},{"url":"https://github.com/espressif/esp-idf/commit/cad36beb4cde27abcf316cd90d8d8dddbc6f213a","source":"security-advisories@github.com","tags":["Patch"]},{"url":"https://github.com/espressif/esp-idf/commit/de28801e8ea6a736b6f0db6fc0c682739363bb41","source":"security-advisories@github.com","tags":["Patch"]},{"url":"https://github.com/espressif/esp-idf/security/advisories/GHSA-m2h2-683f-9mw7","source":"security-advisories@github.com","tags":["Third Party Advisory","Patch"]}]}}]}