{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-09-29T15:56:43.374","vulnerabilities":[{"cve":{"id":"CVE-2020-21048","sourceIdentifier":"cve@mitre.org","published":"2021-09-14T16:15:08.403","lastModified":"2026-06-17T03:03:31.020","vulnStatus":"Modified","cveTags":[],"descriptions":[{"lang":"en","value":"An issue in the dither.c component of libsixel prior to v1.8.4 allows attackers to cause a denial of service (DOS) via a crafted PNG file."},{"lang":"es","value":"Un problema en el componente dither.c de libsixel versiones anteriores a v1.8.4, permite a atacantes causar una denegación de servicio (DOS) por medio de un archivo PNG diseñado"}],"affected":[{"source":"cve@mitre.org","affectedData":[{"vendor":"n/a","product":"n/a","versions":[{"version":"n/a","status":"affected"}]}]}],"metrics":{"cvssMetricV31":[{"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":"nvd@nist.gov","type":"Primary","description":[{"lang":"en","value":"NVD-CWE-noinfo"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:saitoha:libsixel:*:*:*:*:*:*:*:*","versionEndExcluding":"1.8.4","matchCriteriaId":"41F76DB6-6107-4BFE-882D-1134E1F2CA8F"}]}]}],"references":[{"url":"https://bitbucket.org/netbsd/pkgsrc/commits/6f0c011cbfccdffa635d04c84433b1a02687adad","source":"cve@mitre.org","tags":["Broken Link"]},{"url":"https://github.com/saitoha/libsixel/blob/master/ChangeLog","source":"cve@mitre.org","tags":["Release Notes","Third Party Advisory"]},{"url":"https://github.com/saitoha/libsixel/commit/cb373ab6614c910407c5e5a93ab935144e62b037","source":"cve@mitre.org","tags":["Patch","Third Party Advisory"]},{"url":"https://github.com/saitoha/libsixel/issues/73","source":"cve@mitre.org","tags":["Exploit","Issue Tracking","Patch","Third Party Advisory"]},{"url":"https://github.com/saitoha/libsixel/releases/tag/v1.8.4","source":"cve@mitre.org","tags":["Release Notes","Third Party Advisory"]},{"url":"https://bitbucket.org/netbsd/pkgsrc/commits/6f0c011cbfccdffa635d04c84433b1a02687adad","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Broken Link"]},{"url":"https://github.com/saitoha/libsixel/blob/master/ChangeLog","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Release Notes","Third Party Advisory"]},{"url":"https://github.com/saitoha/libsixel/commit/cb373ab6614c910407c5e5a93ab935144e62b037","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch","Third Party Advisory"]},{"url":"https://github.com/saitoha/libsixel/issues/73","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Exploit","Issue Tracking","Patch","Third Party Advisory"]},{"url":"https://github.com/saitoha/libsixel/releases/tag/v1.8.4","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Release Notes","Third Party Advisory"]}]}}]}