WID-SEC-W-2026-0207
Vulnerability from csaf_certbund - Published: 2026-01-25 23:00 - Updated: 2026-03-05 23:00Summary
Red Hat Enterprise Linux (urllib3): Mehrere Schwachstellen ermöglichen Denial of Service
Severity
Hoch
Notes
Das BSI ist als Anbieter für die eigenen, zur Nutzung bereitgestellten Inhalte nach den allgemeinen Gesetzen verantwortlich. Nutzerinnen und Nutzer sind jedoch dafür verantwortlich, die Verwendung und/oder die Umsetzung der mit den Inhalten bereitgestellten Informationen sorgfältig im Einzelfall zu prüfen.
Produktbeschreibung: Red Hat Enterprise Linux (RHEL) ist eine populäre Linux-Distribution.
Angriff: Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Red Hat Enterprise Linux ausnutzen, um einen Denial of Service Angriff durchzuführen.
Betroffene Betriebssysteme: - UNIX
References
{
"document": {
"aggregate_severity": {
"text": "hoch"
},
"category": "csaf_base",
"csaf_version": "2.0",
"distribution": {
"tlp": {
"label": "WHITE",
"url": "https://www.first.org/tlp/"
}
},
"lang": "de-DE",
"notes": [
{
"category": "legal_disclaimer",
"text": "Das BSI ist als Anbieter f\u00fcr die eigenen, zur Nutzung bereitgestellten Inhalte nach den allgemeinen Gesetzen verantwortlich. Nutzerinnen und Nutzer sind jedoch daf\u00fcr verantwortlich, die Verwendung und/oder die Umsetzung der mit den Inhalten bereitgestellten Informationen sorgf\u00e4ltig im Einzelfall zu pr\u00fcfen."
},
{
"category": "description",
"text": "Red Hat Enterprise Linux (RHEL) ist eine popul\u00e4re Linux-Distribution.",
"title": "Produktbeschreibung"
},
{
"category": "summary",
"text": "Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Red Hat Enterprise Linux ausnutzen, um einen Denial of Service Angriff durchzuf\u00fchren.",
"title": "Angriff"
},
{
"category": "general",
"text": "- UNIX",
"title": "Betroffene Betriebssysteme"
}
],
"publisher": {
"category": "other",
"contact_details": "csaf-provider@cert-bund.de",
"name": "Bundesamt f\u00fcr Sicherheit in der Informationstechnik",
"namespace": "https://www.bsi.bund.de"
},
"references": [
{
"category": "self",
"summary": "WID-SEC-W-2026-0207 - CSAF Version",
"url": "https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-0207.json"
},
{
"category": "self",
"summary": "WID-SEC-2026-0207 - Portal Version",
"url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-0207"
},
{
"category": "external",
"summary": "RedHat Security Advisory vom 2026-01-25",
"url": "https://access.redhat.com/errata/RHSA-2026:1086"
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{
"category": "external",
"summary": "RedHat Security Advisory vom 2026-01-25",
"url": "https://access.redhat.com/errata/RHSA-2026:1087"
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{
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"url": "https://access.redhat.com/errata/RHSA-2026:1088"
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"url": "https://access.redhat.com/errata/RHSA-2026:1166"
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{
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"summary": "Red Hat Security Advisory RHSA-2026:1176 vom 2026-01-26",
"url": "https://access.redhat.com/errata/RHSA-2026:1176"
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{
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"summary": "Red Hat Security Advisory RHSA-2026:1168 vom 2026-01-26",
"url": "https://access.redhat.com/errata/RHSA-2026:1168"
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{
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"summary": "Red Hat Security Advisory RHSA-2026:1332 vom 2026-01-27",
"url": "https://access.redhat.com/errata/RHSA-2026:1332"
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{
"category": "external",
"summary": "Oracle Linux Security Advisory ELSA-2026-1087 vom 2026-01-27",
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{
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"url": "https://linux.oracle.com/errata/ELSA-2026-1224.html"
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{
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{
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"url": "https://linux.oracle.com/errata/ELSA-2026-1086.html"
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{
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{
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{
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{
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"summary": "Oracle Linux Security Advisory ELSA-2026-1254 vom 2026-01-27",
"url": "https://linux.oracle.com/errata/ELSA-2026-1254.html"
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{
"category": "external",
"summary": "openSUSE Security Update OPENSUSE-SU-2026:10096-1 vom 2026-01-27",
"url": "https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/AXAHGTG4AOP52E6CXAVGATIJUVW4COWD/"
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{
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{
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"url": "https://access.redhat.com/errata/RHSA-2026:1504"
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{
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{
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{
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"summary": "SUSE Security Update SUSE-SU-2026:20157-1 vom 2026-01-28",
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{
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"summary": "Red Hat Security Advisory RHSA-2026:1546 vom 2026-01-29",
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{
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{
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{
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{
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{
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{
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"url": "https://access.redhat.com/errata/RHSA-2026:1704"
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{
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{
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{
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{
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{
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{
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{
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{
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"url": "https://access.redhat.com/errata/RHSA-2026:1735"
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{
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{
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"summary": "Red Hat Security Advisory RHSA-2026:1792 vom 2026-02-03",
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{
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{
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{
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"summary": "Red Hat Security Advisory RHSA-2026:1726 vom 2026-02-02",
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{
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"summary": "Red Hat Security Advisory RHSA-2026:1729 vom 2026-02-02",
"url": "https://access.redhat.com/errata/RHSA-2026:1729"
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{
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"url": "https://access.redhat.com/errata/RHSA-2026:1791"
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{
"category": "external",
"summary": "SUSE Security Update SUSE-SU-2026:20175-1 vom 2026-02-02",
"url": "https://lists.suse.com/pipermail/sle-security-updates/2026-February/024008.html"
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{
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{
"category": "external",
"summary": "SUSE Security Update SUSE-SU-2026:20189-1 vom 2026-02-03",
"url": "https://lists.suse.com/pipermail/sle-security-updates/2026-February/024027.html"
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{
"category": "external",
"summary": "openSUSE Security Update OPENSUSE-SU-2026:20127-1 vom 2026-02-03",
"url": "https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/QI5L2D5PGFX35QQJD3GEVJLUHVBHV274/"
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{
"category": "external",
"summary": "SUSE Security Update SUSE-SU-2026:0367-1 vom 2026-02-03",
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{
"category": "external",
"summary": "Red Hat Security Advisory RHSA-2026:1942 vom 2026-02-04",
"url": "https://access.redhat.com/errata/RHSA-2026:1942"
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"summary": "Rocky Linux Security Advisory RLSA-2026:1087 vom 2026-02-11",
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{
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"summary": "Rocky Linux Security Advisory RLSA-2026:1254 vom 2026-02-11",
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{
"category": "external",
"summary": "Red Hat Security Advisory RHSA-2026:2563 vom 2026-02-11",
"url": "https://access.redhat.com/errata/RHSA-2026:2563"
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{
"category": "external",
"summary": "SUSE Security Update SUSE-SU-2026:0443-1 vom 2026-02-11",
"url": "https://lists.suse.com/pipermail/sle-security-updates/2026-February/024105.html"
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{
"category": "external",
"summary": "Rocky Linux Security Advisory RLSA-2026:1240 vom 2026-02-12",
"url": "https://errata.build.resf.org/RLSA-2026:1240"
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"category": "external",
"summary": "SUSE Security Update SUSE-SU-2026:20270-1 vom 2026-02-13",
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{
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"summary": "Red Hat Security Advisory RHSA-2026:2717 vom 2026-02-16",
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{
"category": "external",
"summary": "Red Hat Security Advisory RHSA-2026:2762 vom 2026-02-16",
"url": "https://access.redhat.com/errata/RHSA-2026:2762"
},
{
"category": "external",
"summary": "Red Hat Security Advisory RHSA-2026:2681 vom 2026-02-16",
"url": "https://access.redhat.com/errata/RHSA-2026:2681"
},
{
"category": "external",
"summary": "Red Hat Security Advisory RHSA-2026:2764 vom 2026-02-16",
"url": "https://access.redhat.com/errata/RHSA-2026:2764"
},
{
"category": "external",
"summary": "Red Hat Security Advisory RHSA-2026:2765 vom 2026-02-16",
"url": "https://access.redhat.com/errata/RHSA-2026:2765"
},
{
"category": "external",
"summary": "Red Hat Security Advisory RHSA-2026:2695 vom 2026-02-16",
"url": "https://access.redhat.com/errata/RHSA-2026:2695"
},
{
"category": "external",
"summary": "Red Hat Security Advisory RHSA-2026:2728 vom 2026-02-16",
"url": "https://access.redhat.com/errata/RHSA-2026:2728"
},
{
"category": "external",
"summary": "SUSE Security Update SUSE-SU-2026:20364-1 vom 2026-02-17",
"url": "https://lists.suse.com/pipermail/sle-security-updates/2026-February/024321.html"
},
{
"category": "external",
"summary": "Red Hat Security Advisory RHSA-2026:2911 vom 2026-02-18",
"url": "https://access.redhat.com/errata/RHSA-2026:2911"
},
{
"category": "external",
"summary": "Red Hat Security Advisory RHSA-2026:2919 vom 2026-02-18",
"url": "https://access.redhat.com/errata/RHSA-2026:2919"
},
{
"category": "external",
"summary": "Red Hat Security Advisory RHSA-2026:2926 vom 2026-02-18",
"url": "https://access.redhat.com/errata/RHSA-2026:2926"
},
{
"category": "external",
"summary": "Splunk Security Advisory SVD-2026-0212 vom 2026-02-18",
"url": "https://advisory.splunk.com//advisories/SVD-2026-0212"
},
{
"category": "external",
"summary": "Red Hat Security Advisory RHSA-2026:2925 vom 2026-02-18",
"url": "https://access.redhat.com/errata/RHSA-2026:2925"
},
{
"category": "external",
"summary": "Red Hat Security Advisory RHSA-2026:2924 vom 2026-02-18",
"url": "https://access.redhat.com/errata/RHSA-2026:2924"
},
{
"category": "external",
"summary": "Red Hat Security Advisory RHSA-2026:3296 vom 2026-02-25",
"url": "https://access.redhat.com/errata/RHSA-2026:3296"
},
{
"category": "external",
"summary": "SUSE Security Update SUSE-SU-2026:0635-1 vom 2026-02-25",
"url": "https://lists.suse.com/pipermail/sle-security-updates/2026-February/024387.html"
},
{
"category": "external",
"summary": "openSUSE Security Update OPENSUSE-SU-2026:20271-1 vom 2026-02-27",
"url": "https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/J2T2UC7KN52TYCUU24B5EZBMEVYPUX2W/"
},
{
"category": "external",
"summary": "SUSE Security Update SUSE-SU-2026:20443-1 vom 2026-02-26",
"url": "https://lists.suse.com/pipermail/sle-security-updates/2026-February/024439.html"
},
{
"category": "external",
"summary": "Red Hat Security Advisory RHSA-2026:3461 vom 2026-02-27",
"url": "https://access.redhat.com/errata/RHSA-2026:3461"
},
{
"category": "external",
"summary": "Red Hat Security Advisory RHSA-2026:3462 vom 2026-02-27",
"url": "https://access.redhat.com/errata/RHSA-2026:3462"
},
{
"category": "external",
"summary": "SUSE Security Update SUSE-SU-2026:20485-1 vom 2026-02-27",
"url": "https://lists.suse.com/pipermail/sle-security-updates/2026-February/024485.html"
},
{
"category": "external",
"summary": "Red Hat Security Advisory RHSA-2026:3713 vom 2026-03-04",
"url": "https://access.redhat.com/errata/RHSA-2026:3713"
},
{
"category": "external",
"summary": "Red Hat Security Advisory RHSA-2026:3782 vom 2026-03-04",
"url": "https://access.redhat.com/errata/RHSA-2026:3782"
},
{
"category": "external",
"summary": "Red Hat Security Advisory RHSA-2026:3869 vom 2026-03-05",
"url": "https://access.redhat.com/errata/RHSA-2026:3869"
},
{
"category": "external",
"summary": "Red Hat Security Advisory RHSA-2026:3874 vom 2026-03-05",
"url": "https://access.redhat.com/errata/RHSA-2026:3874"
},
{
"category": "external",
"summary": "Red Hat Security Advisory RHSA-2026:3884 vom 2026-03-05",
"url": "https://access.redhat.com/errata/RHSA-2026:3884"
},
{
"category": "external",
"summary": "SUSE Security Update SUSE-SU-2026:20591-1 vom 2026-03-05",
"url": "https://lists.suse.com/pipermail/sle-security-updates/2026-March/024616.html"
},
{
"category": "external",
"summary": "Red Hat Security Advisory RHSA-2026:3960 vom 2026-03-06",
"url": "https://access.redhat.com/errata/RHSA-2026:3960"
}
],
"source_lang": "en-US",
"title": "Red Hat Enterprise Linux (urllib3): Mehrere Schwachstellen erm\u00f6glichen Denial of Service",
"tracking": {
"current_release_date": "2026-03-05T23:00:00.000+00:00",
"generator": {
"date": "2026-03-06T12:18:06.850+00:00",
"engine": {
"name": "BSI-WID",
"version": "1.5.0"
}
},
"id": "WID-SEC-W-2026-0207",
"initial_release_date": "2026-01-25T23:00:00.000+00:00",
"revision_history": [
{
"date": "2026-01-25T23:00:00.000+00:00",
"number": "1",
"summary": "Initiale Fassung"
},
{
"date": "2026-01-26T23:00:00.000+00:00",
"number": "2",
"summary": "Neue Updates von Red Hat und Oracle Linux aufgenommen"
},
{
"date": "2026-01-27T23:00:00.000+00:00",
"number": "3",
"summary": "Neue Updates von Oracle Linux und openSUSE aufgenommen"
},
{
"date": "2026-01-28T23:00:00.000+00:00",
"number": "4",
"summary": "Neue Updates von Red Hat und SUSE aufgenommen"
},
{
"date": "2026-01-29T23:00:00.000+00:00",
"number": "5",
"summary": "Neue Updates von Red Hat aufgenommen"
},
{
"date": "2026-02-01T23:00:00.000+00:00",
"number": "6",
"summary": "Neue Updates von Red Hat aufgenommen"
},
{
"date": "2026-02-02T23:00:00.000+00:00",
"number": "7",
"summary": "Neue Updates von Red Hat, IBM und SUSE aufgenommen"
},
{
"date": "2026-02-03T23:00:00.000+00:00",
"number": "8",
"summary": "Neue Updates von SUSE und openSUSE aufgenommen"
},
{
"date": "2026-02-04T23:00:00.000+00:00",
"number": "9",
"summary": "Neue Updates von Red Hat aufgenommen"
},
{
"date": "2026-02-05T23:00:00.000+00:00",
"number": "10",
"summary": "Neue Updates von Red Hat und Amazon aufgenommen"
},
{
"date": "2026-02-08T23:00:00.000+00:00",
"number": "11",
"summary": "Neue Updates von Red Hat aufgenommen"
},
{
"date": "2026-02-10T23:00:00.000+00:00",
"number": "12",
"summary": "Neue Updates von Rocky Enterprise Software Foundation und Red Hat aufgenommen"
},
{
"date": "2026-02-11T23:00:00.000+00:00",
"number": "13",
"summary": "Neue Updates von Red Hat und SUSE aufgenommen"
},
{
"date": "2026-02-15T23:00:00.000+00:00",
"number": "14",
"summary": "Neue Updates von SUSE aufgenommen"
},
{
"date": "2026-02-16T23:00:00.000+00:00",
"number": "15",
"summary": "Neue Updates von Red Hat aufgenommen"
},
{
"date": "2026-02-17T23:00:00.000+00:00",
"number": "16",
"summary": "Neue Updates von SUSE aufgenommen"
},
{
"date": "2026-02-18T23:00:00.000+00:00",
"number": "17",
"summary": "Neue Updates von Red Hat und Splunk-SVD aufgenommen"
},
{
"date": "2026-02-24T23:00:00.000+00:00",
"number": "18",
"summary": "Neue Updates von Red Hat aufgenommen"
},
{
"date": "2026-02-25T23:00:00.000+00:00",
"number": "19",
"summary": "Neue Updates von SUSE aufgenommen"
},
{
"date": "2026-02-26T23:00:00.000+00:00",
"number": "20",
"summary": "Neue Updates von openSUSE und SUSE aufgenommen"
},
{
"date": "2026-03-01T23:00:00.000+00:00",
"number": "21",
"summary": "Neue Updates von Red Hat und SUSE aufgenommen"
},
{
"date": "2026-03-03T23:00:00.000+00:00",
"number": "22",
"summary": "Neue Updates von Red Hat aufgenommen"
},
{
"date": "2026-03-04T23:00:00.000+00:00",
"number": "23",
"summary": "Neue Updates von Red Hat aufgenommen"
},
{
"date": "2026-03-05T23:00:00.000+00:00",
"number": "24",
"summary": "Neue Updates von Red Hat und SUSE aufgenommen"
}
],
"status": "final",
"version": "24"
}
},
"product_tree": {
"branches": [
{
"branches": [
{
"category": "product_name",
"name": "Amazon Linux 2",
"product": {
"name": "Amazon Linux 2",
"product_id": "398363",
"product_identification_helper": {
"cpe": "cpe:/o:amazon:linux_2:-"
}
}
}
],
"category": "vendor",
"name": "Amazon"
},
{
"branches": [
{
"category": "product_name",
"name": "IBM InfoSphere Information Server",
"product": {
"name": "IBM InfoSphere Information Server",
"product_id": "T035705",
"product_identification_helper": {
"cpe": "cpe:/a:ibm:infosphere_information_server:-"
}
}
}
],
"category": "vendor",
"name": "IBM"
},
{
"branches": [
{
"category": "product_name",
"name": "Oracle Linux",
"product": {
"name": "Oracle Linux",
"product_id": "T004914",
"product_identification_helper": {
"cpe": "cpe:/o:oracle:linux:-"
}
}
}
],
"category": "vendor",
"name": "Oracle"
},
{
"branches": [
{
"category": "product_name",
"name": "RESF Rocky Linux",
"product": {
"name": "RESF Rocky Linux",
"product_id": "T032255",
"product_identification_helper": {
"cpe": "cpe:/o:resf:rocky_linux:-"
}
}
}
],
"category": "vendor",
"name": "RESF"
},
{
"branches": [
{
"branches": [
{
"category": "product_name",
"name": "Red Hat Enterprise Linux",
"product": {
"name": "Red Hat Enterprise Linux",
"product_id": "67646",
"product_identification_helper": {
"cpe": "cpe:/o:redhat:enterprise_linux:-"
}
}
},
{
"category": "product_version",
"name": "10",
"product": {
"name": "Red Hat Enterprise Linux 10",
"product_id": "T050286",
"product_identification_helper": {
"cpe": "cpe:/o:redhat:enterprise_linux:10"
}
}
},
{
"category": "product_version",
"name": "9",
"product": {
"name": "Red Hat Enterprise Linux 9",
"product_id": "T050287",
"product_identification_helper": {
"cpe": "cpe:/o:redhat:enterprise_linux:9"
}
}
}
],
"category": "product_name",
"name": "Enterprise Linux"
}
],
"category": "vendor",
"name": "Red Hat"
},
{
"branches": [
{
"category": "product_name",
"name": "SUSE Linux",
"product": {
"name": "SUSE Linux",
"product_id": "T002207",
"product_identification_helper": {
"cpe": "cpe:/o:suse:suse_linux:-"
}
}
},
{
"category": "product_name",
"name": "SUSE openSUSE",
"product": {
"name": "SUSE openSUSE",
"product_id": "T027843",
"product_identification_helper": {
"cpe": "cpe:/o:suse:opensuse:-"
}
}
}
],
"category": "vendor",
"name": "SUSE"
},
{
"branches": [
{
"branches": [
{
"category": "product_version_range",
"name": "DB Connect \u003c4.2.0",
"product": {
"name": "Splunk Splunk Enterprise DB Connect \u003c4.2.0",
"product_id": "T050997"
}
},
{
"category": "product_version",
"name": "DB Connect 4.2.0",
"product": {
"name": "Splunk Splunk Enterprise DB Connect 4.2.0",
"product_id": "T050997-fixed",
"product_identification_helper": {
"cpe": "cpe:/a:splunk:splunk:db_connect__4.2.0"
}
}
}
],
"category": "product_name",
"name": "Splunk Enterprise"
}
],
"category": "vendor",
"name": "Splunk"
}
]
},
"vulnerabilities": [
{
"cve": "CVE-2025-66418",
"product_status": {
"known_affected": [
"T002207",
"67646",
"T035705",
"T050997",
"T027843",
"398363",
"T004914",
"T050286",
"T032255",
"T050287"
]
},
"release_date": "2026-01-25T23:00:00.000+00:00",
"title": "CVE-2025-66418"
},
{
"cve": "CVE-2025-66471",
"product_status": {
"known_affected": [
"T002207",
"67646",
"T035705",
"T050997",
"T027843",
"398363",
"T004914",
"T050286",
"T032255",
"T050287"
]
},
"release_date": "2026-01-25T23:00:00.000+00:00",
"title": "CVE-2025-66471"
},
{
"cve": "CVE-2026-21441",
"product_status": {
"known_affected": [
"T002207",
"67646",
"T035705",
"T050997",
"T027843",
"398363",
"T004914",
"T050286",
"T032255",
"T050287"
]
},
"release_date": "2026-01-25T23:00:00.000+00:00",
"title": "CVE-2026-21441"
}
]
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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