WID-SEC-W-2026-3369
Vulnerability from csaf_certbund - Published: 2026-09-14 22:00 - Updated: 2026-09-14 22:00Summary
ZScaler Client Connector: Mehrere Schwachstellen ermöglichen Umgehen von Sicherheitsvorkehrungen
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: Zscaler Client Connector, ehemals Zscaler App (Z App) führt Sicherheits- und Richtlinienkontrollen auf verwalteten Endgeräten durch.
Angriff: Ein lokaler Angreifer kann mehrere Schwachstellen in ZScaler Client Connector ausnutzen, um Sicherheitsvorkehrungen zu umgehen, Daten zu manipulieren oder einen Denial-of-Service-Zustand auszulösen.
Betroffene Betriebssysteme: - Android
- Sonstiges
- Windows
Affected products
Known affected
2 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
|
ZScaler Client Connector ChromeOS <4.2.0.152
ZScaler / Client Connector
|
ChromeOS <4.2.0.152 | ||
|
ZScaler Client Connector Android <4.2.0.152
ZScaler / Client Connector
|
Android <4.2.0.152 |
Affected products
Known affected
2 products, the same list as for
CVE-2026-59569
References
7 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": "Zscaler Client Connector, ehemals Zscaler App (Z App) f\u00fchrt Sicherheits- und Richtlinienkontrollen auf verwalteten Endger\u00e4ten durch.",
"title": "Produktbeschreibung"
},
{
"category": "summary",
"text": "Ein lokaler Angreifer kann mehrere Schwachstellen in ZScaler Client Connector ausnutzen, um Sicherheitsvorkehrungen zu umgehen, Daten zu manipulieren oder einen Denial-of-Service-Zustand auszul\u00f6sen.",
"title": "Angriff"
},
{
"category": "general",
"text": "- Android\n- Sonstiges\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-2026-3369 - CSAF Version",
"url": "https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-3369.json"
},
{
"category": "self",
"summary": "WID-SEC-2026-3369 - Portal Version",
"url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-3369"
},
{
"category": "external",
"summary": "EU Vulnerability Database vom 2026-09-14",
"url": "https://euvd.enisa.europa.eu/enisa/EUVD-2026-77537"
},
{
"category": "external",
"summary": "EU Vulnerability Database vom 2026-09-14",
"url": "https://euvd.enisa.europa.eu/enisa/EUVD-2026-77540"
},
{
"category": "external",
"summary": "GitHub Security Advisory vom 2026-09-14",
"url": "https://github.com/advisories/GHSA-4VCV-P436-XXWH"
},
{
"category": "external",
"summary": "GitHub Security Advisory vom 2026-09-14",
"url": "https://github.com/advisories/GHSA-CJ79-F7P8-R2FV"
},
{
"category": "external",
"summary": "Client Connector App Release Summary",
"url": "https://help.zscaler.com/zscaler-client-connector/client-connector-app-release-summary-2026"
}
],
"source_lang": "en-US",
"title": "ZScaler Client Connector: Mehrere Schwachstellen erm\u00f6glichen Umgehen von Sicherheitsvorkehrungen",
"tracking": {
"current_release_date": "2026-09-14T22:00:00.000+00:00",
"generator": {
"date": "2026-09-15T11:31:37.317+00:00",
"engine": {
"name": "BSI-WID",
"version": "1.6.0"
}
},
"id": "WID-SEC-W-2026-3369",
"initial_release_date": "2026-09-14T22:00:00.000+00:00",
"revision_history": [
{
"date": "2026-09-14T22:00:00.000+00:00",
"number": "1",
"summary": "Initiale Fassung"
}
],
"status": "final",
"version": "1"
}
},
"product_tree": {
"branches": [
{
"branches": [
{
"branches": [
{
"category": "product_version_range",
"name": "Android \u003c4.2.0.152",
"product": {
"name": "ZScaler Client Connector Android \u003c4.2.0.152",
"product_id": "T058582"
}
},
{
"category": "product_version",
"name": "Android 4.2.0.152",
"product": {
"name": "ZScaler Client Connector Android 4.2.0.152",
"product_id": "T058582-fixed",
"product_identification_helper": {
"cpe": "cpe:/a:zscaler:client_connector:android_and_chromeos"
}
}
},
{
"category": "product_version_range",
"name": "ChromeOS \u003c4.2.0.152",
"product": {
"name": "ZScaler Client Connector ChromeOS \u003c4.2.0.152",
"product_id": "T059540"
}
},
{
"category": "product_version",
"name": "ChromeOS 4.2.0.152",
"product": {
"name": "ZScaler Client Connector ChromeOS 4.2.0.152",
"product_id": "T059540-fixed",
"product_identification_helper": {
"cpe": "cpe:/a:zscaler:client_connector:chromeos__4.2.0.152"
}
}
}
],
"category": "product_name",
"name": "Client Connector"
}
],
"category": "vendor",
"name": "ZScaler"
}
]
},
"vulnerabilities": [
{
"cve": "CVE-2026-59569",
"product_status": {
"known_affected": [
"T059540",
"T058582"
]
},
"release_date": "2026-09-14T22:00:00.000+00:00",
"title": "CVE-2026-59569"
},
{
"cve": "CVE-2026-59570",
"product_status": {
"known_affected": [
"T059540",
"T058582"
]
},
"release_date": "2026-09-14T22:00:00.000+00:00",
"title": "CVE-2026-59570"
}
]
}
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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.
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.
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