{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-04-18T08:25:44.751","vulnerabilities":[{"cve":{"id":"CVE-2021-43313","sourceIdentifier":"patrick@puiterwijk.org","published":"2023-03-24T20:15:08.317","lastModified":"2025-04-11T12:27:55.013","vulnStatus":"Modified","cveTags":[],"descriptions":[{"lang":"en","value":"A heap-based buffer overflow was discovered in upx, during the variable 'bucket' points to an inaccessible address. The issue is being triggered in the function PackLinuxElf32::invert_pt_dynamic at p_lx_elf.cpp:1688."}],"metrics":{"cvssMetricV31":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","baseScore":7.5,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":3.9,"impactScore":3.6}]},"weaknesses":[{"source":"patrick@puiterwijk.org","type":"Secondary","description":[{"lang":"en","value":"CWE-119"}]},{"source":"nvd@nist.gov","type":"Primary","description":[{"lang":"en","value":"CWE-787"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:upx:upx:*:*:*:*:*:*:*:*","versionEndExcluding":"4.0.0","matchCriteriaId":"BCD4741F-C03D-4C4B-B793-AC2A89A0F1F1"}]}]}],"references":[{"url":"https://github.com/upx/upx/issues/378","source":"patrick@puiterwijk.org","tags":["Exploit","Issue Tracking","Patch"]},{"url":"https://github.com/upx/upx/issues/378","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Exploit","Issue Tracking","Patch"]}]}}]}