{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-04-21T18:49:18.092","vulnerabilities":[{"cve":{"id":"CVE-2026-23951","sourceIdentifier":"security-advisories@github.com","published":"2026-01-22T01:15:52.633","lastModified":"2026-02-17T16:48:48.433","vulnStatus":"Analyzed","cveTags":[],"descriptions":[{"lang":"en","value":"SumatraPDF is a multi-format reader for Windows. All versions contain an off-by-one error in the validation code that only triggers with exactly 2 records, causing an integer underflow in the size calculation. This bug exists in PalmDbReader::GetRecord when opening a crafted Mobi file, resulting in an out-of-bounds heap read that crashes the app. There are no published fixes at the time of publication."},{"lang":"es","value":"SumatraPDF es un lector multiformato para Windows. Todas las versiones contienen un error de off-by-one en el código de validación que solo se activa con exactamente 2 registros, causando un subdesbordamiento de enteros en el cálculo del tamaño. Este error existe en PalmDbReader::GetRecord al abrir un archivo Mobi manipulado, resultando en una lectura de montón fuera de límites que bloquea la aplicación. No hay correcciones publicadas en el momento de la publicación."}],"metrics":{"cvssMetricV31":[{"source":"security-advisories@github.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","baseScore":5.5,"baseSeverity":"MEDIUM","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"REQUIRED","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":1.8,"impactScore":3.6}]},"weaknesses":[{"source":"security-advisories@github.com","type":"Primary","description":[{"lang":"en","value":"CWE-125"},{"lang":"en","value":"CWE-191"}]},{"source":"nvd@nist.gov","type":"Primary","description":[{"lang":"en","value":"CWE-193"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:sumatrapdfreader:sumatrapdf:-:*:*:*:*:*:*:*","matchCriteriaId":"EDC837AF-B0DA-4A27-8CF4-EE8846526B37"}]}]}],"references":[{"url":"https://github.com/sumatrapdfreader/sumatrapdf/blob/master/src/PalmDbReader.cpp","source":"security-advisories@github.com","tags":["Product"]},{"url":"https://github.com/sumatrapdfreader/sumatrapdf/security/advisories/GHSA-hj4w-c5x8-p2hv","source":"security-advisories@github.com","tags":["Exploit","Vendor Advisory"]}]}}]}