{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-08-01T02:57:29.724","vulnerabilities":[{"cve":{"id":"CVE-2021-29470","sourceIdentifier":"security-advisories@github.com","published":"2021-04-23T19:15:11.243","lastModified":"2026-06-17T03:47:42.397","vulnStatus":"Modified","cveTags":[],"descriptions":[{"lang":"en","value":"Exiv2 is a command-line utility and C++ library for reading, writing, deleting, and modifying the metadata of image files. An out-of-bounds read was found in Exiv2 versions v0.27.3 and earlier. The out-of-bounds read is triggered when Exiv2 is used to write metadata into a crafted image file. An attacker could potentially exploit the vulnerability to cause a denial of service by crashing Exiv2, if they can trick the victim into running Exiv2 on a crafted image file. Note that this bug is only triggered when writing the metadata, which is a less frequently used Exiv2 operation than reading the metadata. For example, to trigger the bug in the Exiv2 command-line application, you need to add an extra command-line argument such as insert. The bug is fixed in version v0.27.4."},{"lang":"es","value":"Exiv2 es una utilidad de línea de comandos y una biblioteca C++ para leer, escribir, eliminar y modificar los metadatos de archivos de imagen.&#xa0;Se encontró una lectura fuera de límites en Exiv2 versiones v0.27.3 y anteriores.&#xa0;La lectura fuera de límites es desencadenada cuando es usado Exiv2 para escribir metadatos en un archivo de imagen diseñado.&#xa0;Un atacante podría explotar la vulnerabilidad para causar una denegación de servicio al bloquear Exiv2, si puede engañar a la víctima para que ejecute Exiv2 en un archivo de imagen diseñado.&#xa0;Note que este bug solo es desencadenado al escribir los metadatos, que es una operación de Exiv2 que es usada con menos frecuencia que la lectura de los metadatos.&#xa0;Por ejemplo, para desencadenar el bug en la aplicación de línea de comandos Exiv2, debe agregar un argumento de línea de comando adicional como insert.&#xa0;El bug es corregido en la versión v0.27.4"}],"affected":[{"source":"security-advisories@github.com","affectedData":[{"vendor":"Exiv2","product":"exiv2","versions":[{"version":"<= 0.27.3","status":"affected"}]}]}],"metrics":{"cvssMetricV31":[{"source":"security-advisories@github.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H","baseScore":4.7,"baseSeverity":"MEDIUM","attackVector":"LOCAL","attackComplexity":"HIGH","privilegesRequired":"NONE","userInteraction":"REQUIRED","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":1.0,"impactScore":3.6},{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","baseScore":6.5,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"REQUIRED","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":2.8,"impactScore":3.6}],"cvssMetricV2":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"2.0","vectorString":"AV:N/AC:M/Au:N/C:N/I:N/A:P","baseScore":4.3,"accessVector":"NETWORK","accessComplexity":"MEDIUM","authentication":"NONE","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"PARTIAL"},"baseSeverity":"MEDIUM","exploitabilityScore":8.6,"impactScore":2.9,"acInsufInfo":false,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":true}]},"weaknesses":[{"source":"security-advisories@github.com","type":"Secondary","description":[{"lang":"en","value":"CWE-125"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:exiv2:exiv2:*:*:*:*:*:*:*:*","versionEndIncluding":"0.27.3","matchCriteriaId":"2159AB56-2DD0-4FF3-9D61-0C35D1DCB850"}]}]},{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*","matchCriteriaId":"E460AA51-FCDA-46B9-AE97-E6676AA5E194"},{"vulnerable":true,"criteria":"cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*","matchCriteriaId":"A930E247-0B43-43CB-98FF-6CE7B8189835"}]}]}],"references":[{"url":"https://github.com/Exiv2/exiv2/pull/1581","source":"security-advisories@github.com","tags":["Patch","Third 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