{"attribution":"This product uses data from the NVD API but is not endorsed or certified by the NVD.","cve":{"id":"CVE-2026-4046","sourceIdentifier":"3ff69d7a-14f2-4f67-a097-88dee7810d18","published":"2026-03-30T18:16:19.573","lastModified":"2026-07-14T13:18:57.707","vulnStatus":"Modified","cveTags":[],"descriptions":[{"lang":"en","value":"The iconv() function in the GNU C Library versions 2.43 and earlier may crash due to an assertion failure when converting inputs from the IBM1390 or IBM1399 character sets, which may be used to remotely crash an application.\n\n\n\nThis vulnerability can be trivially mitigated by removing the IBM1390 and IBM1399 character sets from systems that do not need them."},{"lang":"es","value":"La función iconv() en la Biblioteca C de GNU versiones 2.43 y anteriores puede colapsar debido a un fallo de aserción al convertir entradas de los conjuntos de caracteres IBM1390 o IBM1399, lo que puede ser utilizado para colapsar una aplicación de forma remota.\n\nEsta vulnerabilidad puede mitigarse trivialmente al eliminar los conjuntos de caracteres IBM1390 e IBM1399 de los sistemas que no los necesiten."}],"affected":[{"source":"3ff69d7a-14f2-4f67-a097-88dee7810d18","affectedData":[{"vendor":"The GNU C Library","product":"glibc","defaultStatus":"unaffected","versions":[{"version":"2.3.3","lessThanOrEqual":"2.43","versionType":"custom","status":"affected"}]}]},{"source":"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e","affectedData":[{"vendor":"Siemens","product":"SIMATIC S7-1500 CPU 1518-4 PN/DP MFP","defaultStatus":"unknown","versions":[{"version":"V3.1.5","lessThan":"V3.1.6","versionType":"custom","status":"affected"}]},{"vendor":"Siemens","product":"SIMATIC S7-1500 CPU 1518-4 PN/DP MFP","defaultStatus":"unknown","versions":[{"version":"V3.1.5","lessThan":"V3.1.6","versionType":"custom","status":"affected"}]},{"vendor":"Siemens","product":"SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP","defaultStatus":"unknown","versions":[{"version":"V3.1.5","lessThan":"V3.1.6","versionType":"custom","status":"affected"}]},{"vendor":"Siemens","product":"SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP","defaultStatus":"unknown","versions":[{"version":"V3.1.5","lessThan":"V3.1.6","versionType":"custom","status":"affected"}]},{"vendor":"Siemens","product":"SIPLUS S7-1500 CPU 1518-4 PN/DP MFP","defaultStatus":"unknown","versions":[{"version":"V3.1.5","lessThan":"V3.1.6","versionType":"custom","status":"affected"}]}]}],"metrics":{"cvssMetricV31":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","type":"Secondary","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}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2026-03-30T17:33:59.227677Z","id":"CVE-2026-4046","options":[{"exploitation":"poc"},{"automatable":"yes"},{"technicalImpact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"weaknesses":[{"source":"3ff69d7a-14f2-4f67-a097-88dee7810d18","type":"Secondary","description":[{"lang":"en","value":"CWE-617"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:gnu:glibc:*:*:*:*:*:*:*:*","versionEndIncluding":"2.43","matchCriteriaId":"A9DB11A1-E5B8-4086-9B53-C77A9A2E0EA2"}]}]}],"references":[{"url":"https://inbox.sourceware.org/libc-announce/76814edf-cf7f-47ec-979d-2dce0a2c76bf@gotplt.org/T/#u","source":"3ff69d7a-14f2-4f67-a097-88dee7810d18"},{"url":"https://sourceware.org/bugzilla/show_bug.cgi?id=33980","source":"3ff69d7a-14f2-4f67-a097-88dee7810d18","tags":["Exploit","Issue Tracking","Patch"]},{"url":"https://sourceware.org/git/?p=glibc.git;a=blob_plain;f=advisories/GLIBC-SA-2026-0007;hb=HEAD","source":"3ff69d7a-14f2-4f67-a097-88dee7810d18","tags":["Third Party Advisory"]},{"url":"https://cert-portal.siemens.com/productcert/html/ssa-082556.html","source":"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"}]}}