WID-SEC-W-2026-1756
Vulnerability from csaf_certbund - Published: 2026-05-31 22:00 - Updated: 2026-08-10 22:00Summary
Linux Kernel: Schwachstelle ermöglicht Privilegieneskalation und Denial of Service
Severity
Mittel
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: Der Kernel stellt den Kern des Linux Betriebssystems dar.
Angriff: Ein lokaler Angreifer kann eine Schwachstelle im Linux Kernel für eine Privilegieneskalation ausnutzen, sowie um einen Denial of Service Zustand oder andere, nicht spezifizierte Auswirkungen herbeizuführen.
Betroffene Betriebssysteme: - Linux
Affected products
Known affected
13 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
|
Red Hat Enterprise Linux 10
Red Hat / Enterprise Linux
|
cpe:/o:redhat:enterprise_linux:10
|
10 | |
|
Nutanix AHV <AHV-10.3.1.14
Nutanix / AHV
|
<AHV-10.3.1.14 | ||
|
Nutanix AHV <AHV-11.0.1.8
Nutanix / AHV
|
<AHV-11.0.1.8 | ||
|
Red Hat Enterprise Linux
Red Hat / Enterprise Linux
|
cpe:/o:redhat:enterprise_linux:-
|
— | |
|
SUSE Linux
SUSE
|
cpe:/o:suse:suse_linux:-
|
— | |
|
Open Source Linux Kernel <7.1-rc1
Open Source / Linux Kernel
|
<7.1-rc1 | ||
|
Open Source Linux Kernel <7.0.10
Open Source / Linux Kernel
|
<7.0.10 | ||
|
Oracle Linux
Oracle
|
cpe:/o:oracle:linux:-
|
— | |
|
Open Source Linux Kernel <6.18.33
Open Source / Linux Kernel
|
<6.18.33 | ||
|
Red Hat OpenShift Container Platform
Red Hat / OpenShift
|
cpe:/a:redhat:openshift:container_platform
|
Container Platform | |
|
Debian Linux
Debian
|
cpe:/o:debian:debian_linux:-
|
— | |
|
Ubuntu Linux
Ubuntu
|
cpe:/o:canonical:ubuntu_linux:-
|
— | |
|
SUSE openSUSE
SUSE
|
cpe:/o:suse:opensuse:-
|
— |
References
46 references
{
"document": {
"aggregate_severity": {
"text": "mittel"
},
"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": "Der Kernel stellt den Kern des Linux Betriebssystems dar.",
"title": "Produktbeschreibung"
},
{
"category": "summary",
"text": "Ein lokaler Angreifer kann eine Schwachstelle im Linux Kernel f\u00fcr eine Privilegieneskalation ausnutzen, sowie um einen Denial of Service Zustand oder andere, nicht spezifizierte Auswirkungen herbeizuf\u00fchren.",
"title": "Angriff"
},
{
"category": "general",
"text": "- Linux",
"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-2026-1756 - CSAF Version",
"url": "https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-1756.json"
},
{
"category": "self",
"summary": "WID-SEC-2026-1756 - Portal Version",
"url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-1756"
},
{
"category": "external",
"summary": "Kernel CVE Announce Mailingliste",
"url": "https://lore.kernel.org/linux-cve-announce/"
},
{
"category": "external",
"summary": "Linux Kernel CVE Announcement CVE-2026-46242",
"url": "https://lore.kernel.org/linux-cve-announce/2026053014-CVE-2026-46242-8394@gregkh/"
},
{
"category": "external",
"summary": "openSUSE Security Update OPENSUSE-SU-2026:10954-1 vom 2026-06-08",
"url": "https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/SCML3YIY7XP4A5LIAG3VJHEVKSFGU6XF/"
},
{
"category": "external",
"summary": "Bad Epoll: The bug missed by Mythos vom 2026-07-05",
"url": "https://github.com/J-jaeyoung/bad-epoll"
},
{
"category": "external",
"summary": "Debian Security Advisory DSA-6381 vom 2026-07-05",
"url": "https://security-tracker.debian.org/tracker/DSA-6381-1"
},
{
"category": "external",
"summary": "Oracle Linux Security Advisory ELSA-2026-50372 vom 2026-07-07",
"url": "http://linux.oracle.com/errata/ELSA-2026-50372.html"
},
{
"category": "external",
"summary": "Red Hat Security Advisory RHSA-2026:36186 vom 2026-07-07",
"url": "https://access.redhat.com/errata/RHSA-2026:36186"
},
{
"category": "external",
"summary": "Red Hat Security Advisory RHSA-2026:37729 vom 2026-07-10",
"url": "https://access.redhat.com/errata/RHSA-2026:37729"
},
{
"category": "external",
"summary": "Oracle Linux Security Advisory ELSA-2026-36957 vom 2026-07-13",
"url": "https://linux.oracle.com/errata/ELSA-2026-36957.html"
},
{
"category": "external",
"summary": "Red Hat Security Advisory RHSA-2026:38902 vom 2026-07-13",
"url": "https://access.redhat.com/errata/RHSA-2026:38902"
},
{
"category": "external",
"summary": "Oracle Linux Security Advisory ELSA-2026-36645 vom 2026-07-15",
"url": "https://linux.oracle.com/errata/ELSA-2026-36645.html"
},
{
"category": "external",
"summary": "Oracle Linux Security Advisory ELSA-2026-39494 vom 2026-07-16",
"url": "https://linux.oracle.com/errata/ELSA-2026-39494.html"
},
{
"category": "external",
"summary": "Nutanix Security Advisory SA-52 vom 2026-07-19",
"url": "https://download.nutanix.com/alerts/Security_Advisory_0052.pdf"
},
{
"category": "external",
"summary": "SUSE Security Update SUSE-SU-2026:3130-1 vom 2026-07-20",
"url": "https://lists.suse.com/pipermail/sle-security-updates/2026-July/027664.html"
},
{
"category": "external",
"summary": "Ubuntu Security Notice USN-8569-1 vom 2026-07-20",
"url": "https://ubuntu.com/security/notices/USN-8569-1"
},
{
"category": "external",
"summary": "Ubuntu Security Notice USN-8568-1 vom 2026-07-20",
"url": "https://ubuntu.com/security/notices/USN-8568-1"
},
{
"category": "external",
"summary": "Ubuntu Security Notice USN-8566-1 vom 2026-07-20",
"url": "https://ubuntu.com/security/notices/USN-8566-1"
},
{
"category": "external",
"summary": "Oracle Linux Security Advisory ELSA-2026-25191 vom 2026-07-20",
"url": "http://linux.oracle.com/errata/ELSA-2026-25191.html"
},
{
"category": "external",
"summary": "Oracle Linux Security Advisory ELSA-2026-18134 vom 2026-07-21",
"url": "https://linux.oracle.com/errata/ELSA-2026-18134.html"
},
{
"category": "external",
"summary": "Red Hat Security Advisory RHSA-2026:40779 vom 2026-07-21",
"url": "https://access.redhat.com/errata/RHSA-2026:40779"
},
{
"category": "external",
"summary": "Red Hat Security Advisory RHSA-2026:40764 vom 2026-07-21",
"url": "https://access.redhat.com/errata/RHSA-2026:40764"
},
{
"category": "external",
"summary": "SUSE Security Update SUSE-SU-2026:3156-1 vom 2026-07-21",
"url": "https://lists.suse.com/pipermail/sle-security-updates/2026-July/027682.html"
},
{
"category": "external",
"summary": "Red Hat Security Advisory RHSA-2026:40787 vom 2026-07-21",
"url": "https://access.redhat.com/errata/RHSA-2026:40787"
},
{
"category": "external",
"summary": "SUSE Security Update SUSE-SU-2026:3166-1 vom 2026-07-22",
"url": "https://lists.suse.com/pipermail/sle-security-updates/2026-July/027691.html"
},
{
"category": "external",
"summary": "openSUSE Security Update OPENSUSE-SU-2026:21388-1 vom 2026-07-23",
"url": "https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/AXHOWBDOVMZKI4EOTEBEYRKGVUMHRC3L/"
},
{
"category": "external",
"summary": "Oracle Linux Security Advisory ELSA-2026-19569 vom 2026-07-23",
"url": "https://linux.oracle.com/errata/ELSA-2026-19569.html"
},
{
"category": "external",
"summary": "Ubuntu Security Notice USN-8603-1 vom 2026-07-24",
"url": "https://ubuntu.com/security/notices/USN-8603-1"
},
{
"category": "external",
"summary": "SUSE Security Update SUSE-SU-2026:22903-1 vom 2026-07-27",
"url": "https://lists.suse.com/pipermail/sle-security-updates/2026-July/027860.html"
},
{
"category": "external",
"summary": "SUSE Security Update SUSE-SU-2026:22883-1 vom 2026-07-27",
"url": "https://lists.suse.com/pipermail/sle-security-updates/2026-July/027876.html"
},
{
"category": "external",
"summary": "SUSE Security Update SUSE-SU-2026:22812-1 vom 2026-07-27",
"url": "https://lists.suse.com/pipermail/sle-security-updates/2026-July/027927.html"
},
{
"category": "external",
"summary": "SUSE Security Update SUSE-SU-2026:22904-1 vom 2026-07-27",
"url": "https://lists.suse.com/pipermail/sle-security-updates/2026-July/027859.html"
},
{
"category": "external",
"summary": "SUSE Security Update SUSE-SU-2026:22791-1 vom 2026-07-27",
"url": "https://lists.suse.com/pipermail/sle-security-updates/2026-July/027836.html"
},
{
"category": "external",
"summary": "SUSE Security Update SUSE-SU-2026:22810-1 vom 2026-07-27",
"url": "https://lists.suse.com/pipermail/sle-security-updates/2026-July/027821.html"
},
{
"category": "external",
"summary": "Ubuntu Security Notice USN-8618-1 vom 2026-07-28",
"url": "https://ubuntu.com/security/notices/USN-8618-1"
},
{
"category": "external",
"summary": "SUSE Security Update SUSE-SU-2026:22809-1 vom 2026-07-27",
"url": "https://lists.suse.com/pipermail/sle-security-updates/2026-July/027822.html"
},
{
"category": "external",
"summary": "SUSE Security Update SUSE-SU-2026:22790-1 vom 2026-07-27",
"url": "https://lists.suse.com/pipermail/sle-security-updates/2026-July/027837.html"
},
{
"category": "external",
"summary": "SUSE Security Update SUSE-SU-2026:22835-1 vom 2026-07-27",
"url": "https://lists.suse.com/pipermail/sle-security-updates/2026-July/027913.html"
},
{
"category": "external",
"summary": "Oracle Linux Security Advisory ELSA-2026-21557 vom 2026-07-28",
"url": "https://linux.oracle.com/errata/ELSA-2026-21557.html"
},
{
"category": "external",
"summary": "Red Hat Security Advisory RHSA-2026:44231 vom 2026-07-29",
"url": "https://access.redhat.com/errata/RHSA-2026:44231"
},
{
"category": "external",
"summary": "Oracle Linux Security Advisory ELSA-2026-23329 vom 2026-08-04",
"url": "https://linux.oracle.com/errata/ELSA-2026-23329.html"
},
{
"category": "external",
"summary": "Oracle Linux Security Advisory ELSA-2026-27288 vom 2026-08-06",
"url": "https://linux.oracle.com/errata/ELSA-2026-27288.html"
},
{
"category": "external",
"summary": "Oracle Linux Security Advisory ELSA-2026-30129 vom 2026-08-07",
"url": "https://linux.oracle.com/errata/ELSA-2026-30129.html"
},
{
"category": "external",
"summary": "Oracle Linux Security Advisory ELSA-2026-33685 vom 2026-08-11",
"url": "http://linux.oracle.com/errata/ELSA-2026-33685.html"
},
{
"category": "external",
"summary": "Oracle Linux Security Advisory ELSA-2026-500150 vom 2026-08-11",
"url": "http://linux.oracle.com/errata/ELSA-2026-500150.html"
}
],
"source_lang": "en-US",
"title": "Linux Kernel: Schwachstelle erm\u00f6glicht Privilegieneskalation und Denial of Service",
"tracking": {
"current_release_date": "2026-08-10T22:00:00.000+00:00",
"generator": {
"date": "2026-08-11T09:37:43.630+00:00",
"engine": {
"name": "BSI-WID",
"version": "1.6.0"
}
},
"id": "WID-SEC-W-2026-1756",
"initial_release_date": "2026-05-31T22:00:00.000+00:00",
"revision_history": [
{
"date": "2026-05-31T22:00:00.000+00:00",
"number": "1",
"summary": "Initiale Fassung"
},
{
"date": "2026-06-08T22:00:00.000+00:00",
"number": "2",
"summary": "Neue Updates von openSUSE aufgenommen"
},
{
"date": "2026-07-05T22:00:00.000+00:00",
"number": "3",
"summary": "Exploit aufgenommen, Beschreibung und Bewertung erg\u00e4nzt"
},
{
"date": "2026-07-06T22:00:00.000+00:00",
"number": "4",
"summary": "Neue Updates von Oracle Linux aufgenommen"
},
{
"date": "2026-07-12T22:00:00.000+00:00",
"number": "5",
"summary": "Neue Updates von Red Hat aufgenommen"
},
{
"date": "2026-07-13T22:00:00.000+00:00",
"number": "6",
"summary": "Neue Updates von Red Hat aufgenommen"
},
{
"date": "2026-07-14T22:00:00.000+00:00",
"number": "7",
"summary": "Neue Updates von Oracle Linux aufgenommen"
},
{
"date": "2026-07-16T22:00:00.000+00:00",
"number": "8",
"summary": "Neue Updates von Oracle Linux aufgenommen"
},
{
"date": "2026-07-19T22:00:00.000+00:00",
"number": "9",
"summary": "Neue Updates von Nutanix aufgenommen"
},
{
"date": "2026-07-20T22:00:00.000+00:00",
"number": "10",
"summary": "Neue Updates von SUSE, Ubuntu und Oracle Linux aufgenommen"
},
{
"date": "2026-07-21T22:00:00.000+00:00",
"number": "11",
"summary": "Neue Updates von Red Hat und SUSE aufgenommen"
},
{
"date": "2026-07-23T22:00:00.000+00:00",
"number": "12",
"summary": "Neue Updates von openSUSE und Oracle Linux aufgenommen"
},
{
"date": "2026-07-27T22:00:00.000+00:00",
"number": "13",
"summary": "Neue Updates von SUSE und Ubuntu aufgenommen"
},
{
"date": "2026-07-28T22:00:00.000+00:00",
"number": "14",
"summary": "Neue Updates von Oracle Linux aufgenommen"
},
{
"date": "2026-07-29T22:00:00.000+00:00",
"number": "15",
"summary": "Neue Updates von Red Hat aufgenommen"
},
{
"date": "2026-08-03T22:00:00.000+00:00",
"number": "16",
"summary": "Neue Updates von Oracle Linux aufgenommen"
},
{
"date": "2026-08-05T22:00:00.000+00:00",
"number": "17",
"summary": "Neue Updates von Oracle Linux aufgenommen"
},
{
"date": "2026-08-06T22:00:00.000+00:00",
"number": "18",
"summary": "Neue Updates von Oracle Linux aufgenommen"
},
{
"date": "2026-08-10T22:00:00.000+00:00",
"number": "19",
"summary": "Neue Updates von Oracle Linux aufgenommen"
}
],
"status": "final",
"version": "19"
}
},
"product_tree": {
"branches": [
{
"branches": [
{
"category": "product_name",
"name": "Debian Linux",
"product": {
"name": "Debian Linux",
"product_id": "2951",
"product_identification_helper": {
"cpe": "cpe:/o:debian:debian_linux:-"
}
}
}
],
"category": "vendor",
"name": "Debian"
},
{
"branches": [
{
"branches": [
{
"category": "product_version_range",
"name": "\u003cAHV-10.3.1.14",
"product": {
"name": "Nutanix AHV \u003cAHV-10.3.1.14",
"product_id": "T056766"
}
},
{
"category": "product_version",
"name": "AHV-10.3.1.14",
"product": {
"name": "Nutanix AHV AHV-10.3.1.14",
"product_id": "T056766-fixed",
"product_identification_helper": {
"cpe": "cpe:/o:nutanix:ahv:ahv-10.3.1.14"
}
}
},
{
"category": "product_version_range",
"name": "\u003cAHV-11.0.1.8",
"product": {
"name": "Nutanix AHV \u003cAHV-11.0.1.8",
"product_id": "T056767"
}
},
{
"category": "product_version",
"name": "AHV-11.0.1.8",
"product": {
"name": "Nutanix AHV AHV-11.0.1.8",
"product_id": "T056767-fixed",
"product_identification_helper": {
"cpe": "cpe:/o:nutanix:ahv:ahv-11.0.1.8"
}
}
}
],
"category": "product_name",
"name": "AHV"
}
],
"category": "vendor",
"name": "Nutanix"
},
{
"branches": [
{
"branches": [
{
"category": "product_version_range",
"name": "\u003c6.18.33",
"product": {
"name": "Open Source Linux Kernel \u003c6.18.33",
"product_id": "T054897"
}
},
{
"category": "product_version",
"name": "6.18.33",
"product": {
"name": "Open Source Linux Kernel 6.18.33",
"product_id": "T054897-fixed",
"product_identification_helper": {
"cpe": "cpe:/o:linux:linux_kernel:6.18.33"
}
}
},
{
"category": "product_version_range",
"name": "\u003c7.0.10",
"product": {
"name": "Open Source Linux Kernel \u003c7.0.10",
"product_id": "T054898"
}
},
{
"category": "product_version",
"name": "7.0.10",
"product": {
"name": "Open Source Linux Kernel 7.0.10",
"product_id": "T054898-fixed",
"product_identification_helper": {
"cpe": "cpe:/o:linux:linux_kernel:7.0.10"
}
}
},
{
"category": "product_version_range",
"name": "\u003c7.1-rc1",
"product": {
"name": "Open Source Linux Kernel \u003c7.1-rc1",
"product_id": "T054899"
}
},
{
"category": "product_version",
"name": "7.1-rc1",
"product": {
"name": "Open Source Linux Kernel 7.1-rc1",
"product_id": "T054899-fixed",
"product_identification_helper": {
"cpe": "cpe:/o:linux:linux_kernel:7.1-rc1"
}
}
}
],
"category": "product_name",
"name": "Linux Kernel"
}
],
"category": "vendor",
"name": "Open Source"
},
{
"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": [
{
"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": "T056204",
"product_identification_helper": {
"cpe": "cpe:/o:redhat:enterprise_linux:10"
}
}
}
],
"category": "product_name",
"name": "Enterprise Linux"
},
{
"branches": [
{
"category": "product_version",
"name": "Container Platform",
"product": {
"name": "Red Hat OpenShift Container Platform",
"product_id": "T040130",
"product_identification_helper": {
"cpe": "cpe:/a:redhat:openshift:container_platform"
}
}
}
],
"category": "product_name",
"name": "OpenShift"
}
],
"category": "vendor",
"name": "Red Hat"
},
{
"branches": [
{
"category": "product_name",
"name": "SUSE Linux",
"product": {
"name": "SUSE Linux",
"product_id": "T054646",
"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": [
{
"category": "product_name",
"name": "Ubuntu Linux",
"product": {
"name": "Ubuntu Linux",
"product_id": "T055947",
"product_identification_helper": {
"cpe": "cpe:/o:canonical:ubuntu_linux:-"
}
}
}
],
"category": "vendor",
"name": "Ubuntu"
}
]
},
"vulnerabilities": [
{
"cve": "CVE-2026-46242",
"product_status": {
"known_affected": [
"T056204",
"T056766",
"T056767",
"67646",
"T054646",
"T054899",
"T054898",
"T004914",
"T054897",
"T040130",
"2951",
"T055947",
"T027843"
]
},
"release_date": "2026-05-31T22:00:00.000+00:00",
"title": "CVE-2026-46242"
}
]
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
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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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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