WID-SEC-W-2026-0888
Vulnerability from csaf_certbund - Published: 2026-03-26 23:00 - Updated: 2026-05-04 22:00Summary
tigervnc: Schwachstelle ermöglicht Offenlegung von Informationen, Manipulation von Dateien, und 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: tigervnc ist eine Open Source VNC Implentatation. Virtual Network Computing (VNC) ist ein grafisches Desktopsharing System, welches das RFB Protokoll verwendet um einen Computer fernzusteuern.
Angriff: Ein lokaler Angreifer kann eine Schwachstelle in tigervnc ausnutzen, um Informationen offenzulegen, um Dateien zu manipulieren, und um einen Denial of Service Angriff durchzuführen.
Betroffene Betriebssysteme: - Linux
- UNIX
- Windows
Affected products
Known affected
7 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
|
SUSE Linux
SUSE
|
cpe:/o:suse:suse_linux:-
|
— | |
|
Red Hat Enterprise Linux
Red Hat
|
cpe:/o:redhat:enterprise_linux:-
|
— | |
|
SUSE openSUSE
SUSE
|
cpe:/o:suse:opensuse:-
|
— | |
|
Amazon Linux 2
Amazon
|
cpe:/o:amazon:linux_2:-
|
— | |
|
Oracle Linux
Oracle
|
cpe:/o:oracle:linux:-
|
— | |
|
RESF Rocky Linux
RESF
|
cpe:/o:resf:rocky_linux:-
|
— | |
|
Open Source tigervnc <1.16.2
Open Source / tigervnc
|
<1.16.2 |
References
17 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": "tigervnc ist eine Open Source VNC Implentatation. Virtual Network Computing (VNC) ist ein grafisches Desktopsharing System, welches das RFB Protokoll verwendet um einen Computer fernzusteuern.",
"title": "Produktbeschreibung"
},
{
"category": "summary",
"text": "Ein lokaler Angreifer kann eine Schwachstelle in tigervnc ausnutzen, um Informationen offenzulegen, um Dateien zu manipulieren, und um einen Denial of Service Angriff durchzuf\u00fchren.",
"title": "Angriff"
},
{
"category": "general",
"text": "- Linux\n- UNIX\n- Windows",
"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-2026-0888 - CSAF Version",
"url": "https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-0888.json"
},
{
"category": "self",
"summary": "WID-SEC-2026-0888 - Portal Version",
"url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-0888"
},
{
"category": "external",
"summary": "GitHub Advisory Database vom 2026-03-26",
"url": "https://github.com/advisories/GHSA-4VJ5-VH2W-8G5J"
},
{
"category": "external",
"summary": "EU Vulnerability Database vom 2026-03-26",
"url": "https://euvd.enisa.europa.eu/enisa/EUVD-2026-16468"
},
{
"category": "external",
"summary": "openSUSE Security Update OPENSUSE-SU-2026:10470-1 vom 2026-04-02",
"url": "https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/KSELDN2NZCGJVXFZS4Q37XI7RA3MFBUR/"
},
{
"category": "external",
"summary": "openSUSE Security Update OPENSUSE-SU-2026:20465-1 vom 2026-04-09",
"url": "https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/4LW4E746TASDIJJLZPLFRYWFKGFG6PHM/"
},
{
"category": "external",
"summary": "SUSE Security Update SUSE-SU-2026:1252-1 vom 2026-04-10",
"url": "https://lists.suse.com/pipermail/sle-security-updates/2026-April/025196.html"
},
{
"category": "external",
"summary": "SUSE Security Update SUSE-SU-2026:1302-1 vom 2026-04-14",
"url": "https://lists.suse.com/pipermail/sle-security-updates/2026-April/025319.html"
},
{
"category": "external",
"summary": "Amazon Linux Security Advisory ALAS2-2026-3231 vom 2026-04-14",
"url": "https://alas.aws.amazon.com/AL2/ALAS2-2026-3231.html"
},
{
"category": "external",
"summary": "SUSE Security Update SUSE-SU-2026:1301-1 vom 2026-04-14",
"url": "https://lists.suse.com/pipermail/sle-security-updates/2026-April/025320.html"
},
{
"category": "external",
"summary": "SUSE Security Update SUSE-SU-2026:1303-1 vom 2026-04-14",
"url": "https://lists.suse.com/pipermail/sle-security-updates/2026-April/025318.html"
},
{
"category": "external",
"summary": "SUSE Security Update SUSE-SU-2026:1360-1 vom 2026-04-15",
"url": "https://lists.suse.com/pipermail/sle-security-updates/2026-April/025359.html"
},
{
"category": "external",
"summary": "SUSE Security Update SUSE-SU-2026:21140-1 vom 2026-04-21",
"url": "https://lists.suse.com/pipermail/sle-security-updates/2026-April/025517.html"
},
{
"category": "external",
"summary": "Red Hat Security Advisory RHSA-2026:10739 vom 2026-04-27",
"url": "https://access.redhat.com/errata/RHSA-2026:10739"
},
{
"category": "external",
"summary": "Oracle Linux Security Advisory ELSA-2026-10739 vom 2026-04-27",
"url": "https://linux.oracle.com/errata/ELSA-2026-10739.html"
},
{
"category": "external",
"summary": "Rocky Linux Security Advisory RLSA-2026:10739 vom 2026-04-28",
"url": "https://errata.build.resf.org/RLSA-2026:10739"
},
{
"category": "external",
"summary": "Red Hat Security Advisory RHSA-2026:13414 vom 2026-05-04",
"url": "https://access.redhat.com/errata/RHSA-2026:13414"
}
],
"source_lang": "en-US",
"title": "tigervnc: Schwachstelle erm\u00f6glicht Offenlegung von Informationen, Manipulation von Dateien, und Denial of Service",
"tracking": {
"current_release_date": "2026-05-04T22:00:00.000+00:00",
"generator": {
"date": "2026-05-05T08:26:54.726+00:00",
"engine": {
"name": "BSI-WID",
"version": "1.5.0"
}
},
"id": "WID-SEC-W-2026-0888",
"initial_release_date": "2026-03-26T23:00:00.000+00:00",
"revision_history": [
{
"date": "2026-03-26T23:00:00.000+00:00",
"number": "1",
"summary": "Initiale Fassung"
},
{
"date": "2026-04-06T22:00:00.000+00:00",
"number": "2",
"summary": "Neue Updates von openSUSE aufgenommen"
},
{
"date": "2026-04-09T22:00:00.000+00:00",
"number": "3",
"summary": "Neue Updates von openSUSE aufgenommen"
},
{
"date": "2026-04-12T22:00:00.000+00:00",
"number": "4",
"summary": "Neue Updates von SUSE aufgenommen"
},
{
"date": "2026-04-13T22:00:00.000+00:00",
"number": "5",
"summary": "Neue Updates von SUSE und Amazon aufgenommen"
},
{
"date": "2026-04-15T22:00:00.000+00:00",
"number": "6",
"summary": "Neue Updates von SUSE aufgenommen"
},
{
"date": "2026-04-21T22:00:00.000+00:00",
"number": "7",
"summary": "Neue Updates von SUSE aufgenommen"
},
{
"date": "2026-04-26T22:00:00.000+00:00",
"number": "8",
"summary": "Neue Updates von Red Hat aufgenommen"
},
{
"date": "2026-04-27T22:00:00.000+00:00",
"number": "9",
"summary": "Neue Updates von Oracle Linux und Rocky Enterprise Software Foundation aufgenommen"
},
{
"date": "2026-05-04T22:00:00.000+00:00",
"number": "10",
"summary": "Neue Updates von Red Hat aufgenommen"
}
],
"status": "final",
"version": "10"
}
},
"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": [
{
"branches": [
{
"category": "product_version_range",
"name": "\u003c1.16.2",
"product": {
"name": "Open Source tigervnc \u003c1.16.2",
"product_id": "T052213"
}
},
{
"category": "product_version",
"name": "1.16.2",
"product": {
"name": "Open Source tigervnc 1.16.2",
"product_id": "T052213-fixed",
"product_identification_helper": {
"cpe": "cpe:/a:tigervnc:tigervnc:1.16.2"
}
}
}
],
"category": "product_name",
"name": "tigervnc"
}
],
"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": "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": [
{
"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": "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"
}
]
},
"vulnerabilities": [
{
"cve": "CVE-2026-34352",
"product_status": {
"known_affected": [
"T002207",
"67646",
"T027843",
"398363",
"T004914",
"T032255",
"T052213"
]
},
"release_date": "2026-03-26T23:00:00.000+00:00",
"title": "CVE-2026-34352"
}
]
}
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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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