{"schema_version":"1","data":[{"id":21630,"advisory_id":"4cc6f675-f04f-4ab9-9274-a879313fdd39","revision":1,"source_id":"core-cve","source_url":"https://www.cve.org/CVERecord?id=CVE-2021-3516","source_published_at":"2021-06-01T13:38:13+00:00","published_at":"2026-10-25T05:48:13.783969+00:00","extraction_method":"structured","technologies":["core-cve","libxml2"],"cve_ids":["CVE-2021-3516"],"event_types":["advisory"],"payload":{"kind":"advisory","title":"CVE-2021-3516","summary":"There's a flaw in libxml2's xmllint in versions before 2.9.11. An attacker who is able to submit a crafted file to be processed by xmllint could trigger a use-after-free. The greatest impact of this flaw is to confidentiality, integrity, and availability.","evidence":"cve:CVE-2021-3516","products":[{"name":{"value":"libxml2","evidence":"/containers/cna/affected/0/product"},"prerequisites":[],"fixed_versions":[],"affected_versions":[]}],"severity":"unknown","structured":{"id":"CVE-2021-3516","aliases":["CVE-2021-3516"],"metrics":[],"affected":[{"vendor":"n/a","product":"libxml2","versions":[{"status":"affected","version":"libxml2 2.9.11"}]}],"modified":"2026-10-14T09:49:38.431Z","provider":"cve","references":["https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QVM4UJ3376I6ZVOYMHBNX4GY3NIV52WV/","https://lists.debian.org/debian-lts-announce/2021/05/msg00008.html","https://bugzilla.redhat.com/show_bug.cgi?id=1954225","https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BZOMV5J4PMZAORVT64BKLV6YIZAFDGX6/","https://security.gentoo.org/glsa/202107-05","https://www.oracle.com/security-alerts/cpujan2022.html","https://gitlab.gnome.org/GNOME/libxml2/-/issues/230","https://gitlab.gnome.org/GNOME/libxml2/-/commit/1358d157d0bd83be1dfe356a69213df9fac0b539","https://security.netapp.com/advisory/ntap-20210716-0005/"],"provider_metadata":{"adp":[{"title":"CVE Program Container","references":[{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QVM4UJ3376I6ZVOYMHBNX4GY3NIV52WV/","name":"FEDORA-2021-e3ed1ba38b","tags":["vendor-advisory","x_refsource_FEDORA","x_transferred"]},{"url":"https://lists.debian.org/debian-lts-announce/2021/05/msg00008.html","name":"[debian-lts-announce] 20210510 [SECURITY] [DLA 2653-1] libxml2 security update","tags":["mailing-list","x_refsource_MLIST","x_transferred"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1954225","tags":["x_refsource_MISC","x_transferred"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BZOMV5J4PMZAORVT64BKLV6YIZAFDGX6/","name":"FEDORA-2021-b950000d2b","tags":["vendor-advisory","x_refsource_FEDORA","x_transferred"]},{"url":"https://security.gentoo.org/glsa/202107-05","name":"GLSA-202107-05","tags":["vendor-advisory","x_refsource_GENTOO","x_transferred"]},{"url":"https://www.oracle.com/security-alerts/cpujan2022.html","tags":["x_refsource_MISC","x_transferred"]},{"url":"https://gitlab.gnome.org/GNOME/libxml2/-/issues/230","tags":["x_refsource_MISC","x_transferred"]},{"url":"https://gitlab.gnome.org/GNOME/libxml2/-/commit/1358d157d0bd83be1dfe356a69213df9fac0b539","tags":["x_refsource_MISC","x_transferred"]},{"url":"https://security.netapp.com/advisory/ntap-20210716-0005/","tags":["x_refsource_CONFIRM","x_transferred"]}],"providerMetadata":{"orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE","dateUpdated":"2024-08-03T16:53:17.809Z"}},{"affected":[{"vendor":"Siemens","product":"SIMATIC S7-1500 CPU 1518-4 PN/DP MFP","versions":[{"status":"affected","version":"V3.1.0","lessThan":"V3.1.5","versionType":"custom"}],"defaultStatus":"unknown"},{"vendor":"Siemens","product":"SIMATIC S7-1500 CPU 1518-4 PN/DP MFP","versions":[{"status":"affected","version":"V3.1.0","lessThan":"V3.1.5","versionType":"custom"}],"defaultStatus":"unknown"},{"vendor":"Siemens","product":"SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP","versions":[{"status":"affected","version":"V3.1.0","lessThan":"V3.1.5","versionType":"custom"}],"defaultStatus":"unknown"},{"vendor":"Siemens","product":"SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP","versions":[{"status":"affected","version":"V3.1.0","lessThan":"V3.1.5","versionType":"custom"}],"defaultStatus":"unknown"},{"vendor":"Siemens","product":"SIPLUS S7-1500 CPU 1518-4 PN/DP MFP","versions":[{"status":"affected","version":"V3.1.0","lessThan":"V3.1.5","versionType":"custom"}],"defaultStatus":"unknown"}],"x_adpType":"supplier","references":[{"url":"https://cert-portal.siemens.com/productcert/html/ssa-398330.html"}],"providerMetadata":{"orgId":"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e","shortName":"siemens-SADP","dateUpdated":"2026-10-14T09:49:38.431Z"}}],"cna":{"orgId":"53f830b8-0a3f-465b-8143-3b8a9948e749","shortName":"redhat","dateUpdated":"2022-02-07T14:43:00.000Z"}}},"related_cves":[{"value":"CVE-2021-3516","evidence":"/cveMetadata/cveId"}],"security_relevant":true,"severity_evidence":null}}],"next_after":21630,"next_before":21630}