CVE-2026-25635

{"id": "CVE-2026-25635", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 8.6, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 6.0, "exploitabilityScore": 1.8}]}, "published": "2026-02-06T21:16:18.690", "references": [{"url": "https://github.com/kovidgoyal/calibre/commit/9739232fcb029ac15dfe52ccd4fdb4a07ebb6ce9", "tags": ["Patch"], "source": "security-advisories@github.com"}, {"url": "https://github.com/kovidgoyal/calibre/security/advisories/GHSA-32vh-whvh-9fxr", "tags": ["Exploit", "Third Party Advisory"], "source": "security-advisories@github.com"}, {"url": "https://0x5t.raptx.org/posts/calibre-chm-rce", "tags": ["Exploit", "Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-22"}]}], "descriptions": [{"lang": "en", "value": "calibre is an e-book manager. Prior to 9.2.0, Calibre's CHM reader contains a path traversal vulnerability that allows arbitrary file writes anywhere the user has write permissions. On Windows (haven't tested on other OS's), this can lead to Remote Code Execution by writing a payload to the Startup folder, which executes on next login. This vulnerability is fixed in 9.2.0."}, {"lang": "es", "value": "calibre es un gestor de libros electr\u00f3nicos. Antes de la 9.2.0, el lector CHM de Calibre contiene una vulnerabilidad de salto de ruta que permite la escritura arbitraria de archivos en cualquier lugar donde el usuario tenga permisos de escritura. En Windows (no se ha probado en otros sistemas operativos), esto puede llevar a la ejecuci\u00f3n remota de c\u00f3digo escribiendo una carga \u00fatil en la carpeta de Inicio, que se ejecuta en el siguiente inicio de sesi\u00f3n. Esta vulnerabilidad se corrigi\u00f3 en la 9.2.0."}], "lastModified": "2026-02-17T21:27:17.940", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:calibre-ebook:calibre:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "264BDA56-70BE-4FCE-96AD-7F9D1BA0FB54", "versionEndExcluding": "9.2.0"}], "operator": "OR"}]}], "sourceIdentifier": "security-advisories@github.com"}