WID-SEC-W-2026-1294
Vulnerability from csaf_certbund - Published: 2026-04-27 22:00 - Updated: 2026-08-02 22:00Summary
Linux Kernel: Mehrere Schwachstellen
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 Angreifer kann mehrere Schwachstellen im Linux Kernel ausnutzen, um einen nicht näher spezifizierte Angriffe durchzuführen, die einen Denial-of-Service-Zustand, die Ausführung von Code oder eine Speicherbeschädigung verursachen können.
Betroffene Betriebssysteme: - Linux
Affected products
Known affected
6 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
|
Open Source Linux Kernel
Open Source
|
cpe:/o:linux:linux_kernel:-
|
— | |
|
Debian Linux
Debian
|
cpe:/o:debian:debian_linux:-
|
— | |
|
SUSE Linux
SUSE
|
cpe:/o:suse:suse_linux:-
|
— | |
|
Ubuntu Linux
Ubuntu
|
cpe:/o:canonical:ubuntu_linux:-
|
— | |
|
SUSE openSUSE
SUSE
|
cpe:/o:suse:opensuse:-
|
— | |
|
Oracle Linux
Oracle
|
cpe:/o:oracle:linux:-
|
— |
Affected products
Known affected
6 products, the same list as for
CVE-2026-31686
Affected products
Known affected
6 products, the same list as for
CVE-2026-31686
Affected products
Known affected
6 products, the same list as for
CVE-2026-31686
Affected products
Known affected
6 products, the same list as for
CVE-2026-31686
Affected products
Known affected
6 products, the same list as for
CVE-2026-31686
References
58 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 Angreifer kann mehrere Schwachstellen im Linux Kernel ausnutzen, um einen nicht n\u00e4her spezifizierte Angriffe durchzuf\u00fchren, die einen Denial-of-Service-Zustand, die Ausf\u00fchrung von Code oder eine Speicherbesch\u00e4digung verursachen k\u00f6nnen.",
"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-2026-1294 - CSAF Version",
"url": "https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-1294.json"
},
{
"category": "self",
"summary": "WID-SEC-2026-1294 - Portal Version",
"url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-1294"
},
{
"category": "external",
"summary": "Kernel CVE Announce Mailingliste",
"url": "https://lore.kernel.org/linux-cve-announce/"
},
{
"category": "external",
"summary": "Linux Kernel CVE Announcement CVE-2026-31686",
"url": "https://lore.kernel.org/linux-cve-announce/2026042722-CVE-2026-31686-df69@gregkh/"
},
{
"category": "external",
"summary": "Linux Kernel CVE Announcement CVE-2026-31687",
"url": "https://lore.kernel.org/linux-cve-announce/2026042706-CVE-2026-31687-ce28@gregkh/"
},
{
"category": "external",
"summary": "Linux Kernel CVE Announcement CVE-2026-31688",
"url": "https://lore.kernel.org/linux-cve-announce/2026042706-CVE-2026-31688-1f56@gregkh/"
},
{
"category": "external",
"summary": "Linux Kernel CVE Announcement CVE-2026-31689",
"url": "https://lore.kernel.org/linux-cve-announce/2026042757-CVE-2026-31689-9a00@gregkh/"
},
{
"category": "external",
"summary": "Linux Kernel CVE Announcement CVE-2026-31690",
"url": "https://lore.kernel.org/linux-cve-announce/2026042757-CVE-2026-31690-018e@gregkh/"
},
{
"category": "external",
"summary": "Linux Kernel CVE Announcement CVE-2026-31691",
"url": "https://lore.kernel.org/linux-cve-announce/2026042757-CVE-2026-31691-5c48@gregkh/"
},
{
"category": "external",
"summary": "Debian Security Advisory DSA-6243 vom 2026-05-04",
"url": "https://lists.debian.org/debian-security-announce/2026/msg00154.html"
},
{
"category": "external",
"summary": "Debian Security Advisory DSA-6238 vom 2026-05-04",
"url": "https://lists.debian.org/debian-security-announce/2026/msg00148.html"
},
{
"category": "external",
"summary": "Debian Security Advisory DLA-4561 vom 2026-05-02",
"url": "https://lists.debian.org/debian-lts-announce/2026/05/msg00005.html"
},
{
"category": "external",
"summary": "SUSE Security Update SUSE-SU-2026:21841-1 vom 2026-05-29",
"url": "https://lists.suse.com/pipermail/sle-security-updates/2026-May/026384.html"
},
{
"category": "external",
"summary": "openSUSE Security Update OPENSUSE-SU-2026:20826-1 vom 2026-05-29",
"url": "https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/7D6UU5UPSRF74AUKK2CVVWC3NKU2VIUP/"
},
{
"category": "external",
"summary": "SUSE Security Update SUSE-SU-2026:21834-1 vom 2026-05-29",
"url": "https://lists.suse.com/pipermail/sle-security-updates/2026-May/026381.html"
},
{
"category": "external",
"summary": "SUSE Security Update SUSE-SU-2026:21845-1 vom 2026-06-01",
"url": "https://lists.suse.com/pipermail/sle-security-updates/2026-June/026437.html"
},
{
"category": "external",
"summary": "SUSE Security Update SUSE-SU-2026:21860-1 vom 2026-06-01",
"url": "https://lists.suse.com/pipermail/sle-security-updates/2026-June/026426.html"
},
{
"category": "external",
"summary": "Ubuntu Security Notice USN-8492-1 vom 2026-07-01",
"url": "https://ubuntu.com/security/notices/USN-8492-1"
},
{
"category": "external",
"summary": "Ubuntu Security Notice USN-8488-1 vom 2026-07-01",
"url": "https://ubuntu.com/security/notices/USN-8488-1"
},
{
"category": "external",
"summary": "Ubuntu Security Notice USN-8492-2 vom 2026-07-02",
"url": "https://ubuntu.com/security/notices/USN-8492-2"
},
{
"category": "external",
"summary": "Ubuntu Security Notice USN-8497-1 vom 2026-07-02",
"url": "https://ubuntu.com/security/notices/USN-8497-1"
},
{
"category": "external",
"summary": "Ubuntu Security Notice USN-8499-1 vom 2026-07-02",
"url": "https://ubuntu.com/security/notices/USN-8499-1"
},
{
"category": "external",
"summary": "Ubuntu Security Notice USN-8498-1 vom 2026-07-02",
"url": "https://ubuntu.com/security/notices/USN-8498-1"
},
{
"category": "external",
"summary": "Debian Security Advisory DLA-4671 vom 2026-07-05",
"url": "https://lists.debian.org/debian-lts-announce/2026/07/msg00012.html"
},
{
"category": "external",
"summary": "Debian Security Advisory DLA-4665 vom 2026-07-03",
"url": "https://lists.debian.org/debian-lts-announce/2026/07/msg00006.html"
},
{
"category": "external",
"summary": "Debian Security Advisory DLA-4664 vom 2026-07-03",
"url": "https://lists.debian.org/debian-lts-announce/2026/07/msg00005.html"
},
{
"category": "external",
"summary": "Ubuntu Security Notice USN-8507-1 vom 2026-07-06",
"url": "https://ubuntu.com/security/notices/USN-8507-1"
},
{
"category": "external",
"summary": "Ubuntu Security Notice USN-8492-3 vom 2026-07-06",
"url": "https://ubuntu.com/security/notices/USN-8492-3"
},
{
"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": "Ubuntu Security Notice USN-8492-4 vom 2026-07-09",
"url": "https://ubuntu.com/security/notices/USN-8492-4"
},
{
"category": "external",
"summary": "Ubuntu Security Notice USN-8492-5 vom 2026-07-10",
"url": "https://ubuntu.com/security/notices/USN-8492-5"
},
{
"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-8567-1 vom 2026-07-20",
"url": "https://ubuntu.com/security/notices/USN-8567-1"
},
{
"category": "external",
"summary": "Ubuntu Security Notice USN-8574-1 vom 2026-07-21",
"url": "https://ubuntu.com/security/notices/USN-8574-1"
},
{
"category": "external",
"summary": "Ubuntu Security Notice USN-8575-1 vom 2026-07-21",
"url": "https://ubuntu.com/security/notices/USN-8575-1"
},
{
"category": "external",
"summary": "Ubuntu Security Notice USN-8576-1 vom 2026-07-21",
"url": "https://ubuntu.com/security/notices/USN-8576-1"
},
{
"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": "Ubuntu Security Notice USN-8595-1 vom 2026-07-23",
"url": "https://ubuntu.com/security/notices/USN-8595-1"
},
{
"category": "external",
"summary": "Ubuntu Security Notice USN-8596-1 vom 2026-07-23",
"url": "https://ubuntu.com/security/notices/USN-8596-1"
},
{
"category": "external",
"summary": "Ubuntu Security Notice USN-8574-2 vom 2026-07-23",
"url": "https://ubuntu.com/security/notices/USN-8574-2"
},
{
"category": "external",
"summary": "Ubuntu Security Notice USN-8575-2 vom 2026-07-23",
"url": "https://ubuntu.com/security/notices/USN-8575-2"
},
{
"category": "external",
"summary": "Ubuntu Security Notice USN-8576-2 vom 2026-07-23",
"url": "https://ubuntu.com/security/notices/USN-8576-2"
},
{
"category": "external",
"summary": "Ubuntu Security Notice USN-8597-1 vom 2026-07-23",
"url": "https://ubuntu.com/security/notices/USN-8597-1"
},
{
"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": "Ubuntu Security Notice USN-8595-2 vom 2026-07-24",
"url": "https://ubuntu.com/security/notices/USN-8595-2"
},
{
"category": "external",
"summary": "Ubuntu Security Notice USN-8575-3 vom 2026-07-24",
"url": "https://ubuntu.com/security/notices/USN-8575-3"
},
{
"category": "external",
"summary": "Ubuntu Security Notice USN-8606-1 vom 2026-07-24",
"url": "https://ubuntu.com/security/notices/USN-8606-1"
},
{
"category": "external",
"summary": "Ubuntu Security Notice USN-8607-1 vom 2026-07-24",
"url": "https://ubuntu.com/security/notices/USN-8607-1"
},
{
"category": "external",
"summary": "Ubuntu Security Notice USN-8608-1 vom 2026-07-24",
"url": "https://ubuntu.com/security/notices/USN-8608-1"
},
{
"category": "external",
"summary": "Ubuntu Security Notice USN-8609-1 vom 2026-07-24",
"url": "https://ubuntu.com/security/notices/USN-8609-1"
},
{
"category": "external",
"summary": "Ubuntu Security Notice USN-8610-1 vom 2026-07-24",
"url": "https://ubuntu.com/security/notices/USN-8610-1"
},
{
"category": "external",
"summary": "Ubuntu Security Notice USN-8574-3 vom 2026-07-28",
"url": "https://ubuntu.com/security/notices/USN-8574-3"
},
{
"category": "external",
"summary": "Ubuntu Security Notice USN-8595-3 vom 2026-07-28",
"url": "https://ubuntu.com/security/notices/USN-8595-3"
},
{
"category": "external",
"summary": "Ubuntu Security Notice USN-8619-1 vom 2026-07-28",
"url": "https://ubuntu.com/security/notices/USN-8619-1"
},
{
"category": "external",
"summary": "Ubuntu Security Notice USN-8620-1 vom 2026-07-28",
"url": "https://ubuntu.com/security/notices/USN-8620-1"
},
{
"category": "external",
"summary": "Ubuntu Security Notice USN-8620-3 vom 2026-07-31",
"url": "https://ubuntu.com/security/notices/USN-8620-3"
},
{
"category": "external",
"summary": "Ubuntu Security Notice USN-8620-4 vom 2026-07-31",
"url": "https://ubuntu.com/security/notices/USN-8620-4"
}
],
"source_lang": "en-US",
"title": "Linux Kernel: Mehrere Schwachstellen",
"tracking": {
"current_release_date": "2026-08-02T22:00:00.000+00:00",
"generator": {
"date": "2026-08-03T10:15:08.962+00:00",
"engine": {
"name": "BSI-WID",
"version": "1.6.0"
}
},
"id": "WID-SEC-W-2026-1294",
"initial_release_date": "2026-04-27T22:00:00.000+00:00",
"revision_history": [
{
"date": "2026-04-27T22:00:00.000+00:00",
"number": "1",
"summary": "Initiale Fassung"
},
{
"date": "2026-05-03T22:00:00.000+00:00",
"number": "2",
"summary": "Neue Updates von Debian aufgenommen"
},
{
"date": "2026-05-31T22:00:00.000+00:00",
"number": "3",
"summary": "Neue Updates von SUSE und openSUSE aufgenommen"
},
{
"date": "2026-06-01T22:00:00.000+00:00",
"number": "4",
"summary": "Neue Updates von SUSE aufgenommen"
},
{
"date": "2026-07-01T22:00:00.000+00:00",
"number": "5",
"summary": "Neue Updates von Ubuntu aufgenommen"
},
{
"date": "2026-07-02T22:00:00.000+00:00",
"number": "6",
"summary": "Neue Updates von Ubuntu aufgenommen"
},
{
"date": "2026-07-05T22:00:00.000+00:00",
"number": "7",
"summary": "Neue Updates von Debian aufgenommen"
},
{
"date": "2026-07-06T22:00:00.000+00:00",
"number": "8",
"summary": "Neue Updates von Oracle Linux aufgenommen"
},
{
"date": "2026-07-08T22:00:00.000+00:00",
"number": "9",
"summary": "Neue Updates von Ubuntu aufgenommen"
},
{
"date": "2026-07-09T22:00:00.000+00:00",
"number": "10",
"summary": "Neue Updates von Ubuntu aufgenommen"
},
{
"date": "2026-07-20T22:00:00.000+00:00",
"number": "11",
"summary": "Neue Updates von SUSE und Ubuntu aufgenommen"
},
{
"date": "2026-07-21T22:00:00.000+00:00",
"number": "12",
"summary": "Neue Updates von SUSE aufgenommen"
},
{
"date": "2026-07-22T22:00:00.000+00:00",
"number": "13",
"summary": "Neue Updates von Ubuntu aufgenommen"
},
{
"date": "2026-07-23T22:00:00.000+00:00",
"number": "14",
"summary": "Neue Updates von Ubuntu aufgenommen"
},
{
"date": "2026-07-26T22:00:00.000+00:00",
"number": "15",
"summary": "Neue Updates von Ubuntu aufgenommen"
},
{
"date": "2026-07-27T22:00:00.000+00:00",
"number": "16",
"summary": "Neue Updates von Ubuntu aufgenommen"
},
{
"date": "2026-07-30T22:00:00.000+00:00",
"number": "17",
"summary": "Neue Updates von Ubuntu aufgenommen"
},
{
"date": "2026-08-02T22:00:00.000+00:00",
"number": "18",
"summary": "Neue Updates von Ubuntu aufgenommen"
}
],
"status": "final",
"version": "18"
}
},
"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": [
{
"category": "product_name",
"name": "Open Source Linux Kernel",
"product": {
"name": "Open Source Linux Kernel",
"product_id": "T053374",
"product_identification_helper": {
"cpe": "cpe:/o:linux: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": [
{
"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": [
{
"category": "product_name",
"name": "Ubuntu Linux",
"product": {
"name": "Ubuntu Linux",
"product_id": "T000126",
"product_identification_helper": {
"cpe": "cpe:/o:canonical:ubuntu_linux:-"
}
}
}
],
"category": "vendor",
"name": "Ubuntu"
}
]
},
"vulnerabilities": [
{
"cve": "CVE-2026-31686",
"product_status": {
"known_affected": [
"T053374",
"2951",
"T002207",
"T000126",
"T027843",
"T004914"
]
},
"release_date": "2026-04-27T22:00:00.000+00:00",
"title": "CVE-2026-31686"
},
{
"cve": "CVE-2026-31687",
"product_status": {
"known_affected": [
"T053374",
"2951",
"T002207",
"T000126",
"T027843",
"T004914"
]
},
"release_date": "2026-04-27T22:00:00.000+00:00",
"title": "CVE-2026-31687"
},
{
"cve": "CVE-2026-31688",
"product_status": {
"known_affected": [
"T053374",
"2951",
"T002207",
"T000126",
"T027843",
"T004914"
]
},
"release_date": "2026-04-27T22:00:00.000+00:00",
"title": "CVE-2026-31688"
},
{
"cve": "CVE-2026-31689",
"product_status": {
"known_affected": [
"T053374",
"2951",
"T002207",
"T000126",
"T027843",
"T004914"
]
},
"release_date": "2026-04-27T22:00:00.000+00:00",
"title": "CVE-2026-31689"
},
{
"cve": "CVE-2026-31690",
"product_status": {
"known_affected": [
"T053374",
"2951",
"T002207",
"T000126",
"T027843",
"T004914"
]
},
"release_date": "2026-04-27T22:00:00.000+00:00",
"title": "CVE-2026-31690"
},
{
"cve": "CVE-2026-31691",
"product_status": {
"known_affected": [
"T053374",
"2951",
"T002207",
"T000126",
"T027843",
"T004914"
]
},
"release_date": "2026-04-27T22:00:00.000+00:00",
"title": "CVE-2026-31691"
}
]
}
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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.
Vulnerability timeline
Sightings and recorded dates, grouped by day · UTC
How durations are calculated
Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.
Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.
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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.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.