{"attribution":"This product uses data from the NVD API but is not endorsed or certified by the NVD.","cve":{"id":"CVE-2026-57053","sourceIdentifier":"cve@mitre.org","published":"2026-06-23T18:18:10.827","lastModified":"2026-10-25T23:10:00.167","vulnStatus":"Analyzed","cveTags":[],"descriptions":[{"lang":"en","value":"GNU libidn before 1.44 is prone to out-of-bounds reads of uninitialized memory in the ToUnicode APIs because of mishandling in idna_to_unicode_internal. The affected code is not present in libidn2."},{"lang":"es","value":"GNU libidn anterior a 1.44 es propenso a lecturas fuera de límites de memoria no inicializada en las API ToUnicode debido a un manejo incorrecto en idna_to_unicode_internal. El código afectado no está presente en libidn2."}],"affected":[{"source":"cve@mitre.org","affectedData":[{"vendor":"GNU","product":"libidn","defaultStatus":"unaffected","versions":[{"version":"0","lessThan":"1.44","versionType":"custom","status":"affected"}]}]}],"metrics":{"cvssMetricV31":[{"source":"cve@mitre.org","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:L","baseScore":4.0,"baseSeverity":"MEDIUM","attackVector":"LOCAL","attackComplexity":"HIGH","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"LOW","availabilityImpact":"LOW"},"exploitabilityScore":1.4,"impactScore":2.5},{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N","baseScore":2.5,"baseSeverity":"LOW","attackVector":"LOCAL","attackComplexity":"HIGH","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"LOW","availabilityImpact":"NONE"},"exploitabilityScore":1.0,"impactScore":1.4}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2026-06-23T17:40:08.293205Z","id":"CVE-2026-57053","options":[{"exploitation":"none"},{"automatable":"no"},{"technicalImpact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"weaknesses":[{"source":"cve@mitre.org","type":"Primary","description":[{"lang":"en","value":"CWE-1284"}]},{"source":"nvd@nist.gov","type":"Primary","description":[{"lang":"en","value":"CWE-1284"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:gnu:libidn:*:*:*:*:*:*:*:*","versionStartIncluding":"0.1.15","versionEndExcluding":"1.44","matchCriteriaId":"118FD87F-26DE-4689-A179-D6A96321851E"}]}]}],"references":[{"url":"https://lists.gnu.org/archive/html/help-libidn/2026-05/msg00000.html","source":"cve@mitre.org","tags":["Exploit","Mailing List"]},{"url":"https://lists.gnu.org/archive/html/help-libidn/2026-06/msg00001.html","source":"cve@mitre.org","tags":["Mailing List"]}]}}