CVE-2026-25684 - Vulnerability Details - OpenCVE

Description

A file type attribution issue in Zscaler Internet Access File Type Control evaluation rules may allow improper evaluation of File Type Control policies in rare circumstances.

Published: 2026-09-18

Score: 4.4 Medium

EPSS: n/a

KEV: No

Impact:

Action:

Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

Zscaler

ZIA File Type Control

unaffected

Version	Status	Constraints
`0`	unaffected	< 6.2r (current)

No data.

No data.

No data available yet.

Remediation

No vendor fix or workaround currently provided.

Additional remediation guidance may be available on OpenCVE Cloud.

Tracking

Sign in to view the affected projects.

Advisories

No advisories yet.

No CVSS v4.0

Attack Vector Network

Attack Complexity High

Privileges Required Low

Scope Changed

Confidentiality Impact Low

Integrity Impact Low

Availability Impact None

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Exploitation none

Automatable no

Technical Impact partial

References

Link	Providers
https://help.zscaler.com/zia/release-upgrade-summary-2026

History

Fri, 18 Sep 2026 21:30:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Fri, 18 Sep 2026 14:30:00 +0000

Type	Values Removed	Values Added
Description		A file type attribution issue in Zscaler Internet Access File Type Control evaluation rules may allow improper evaluation of File Type Control policies in rare circumstances.
Title		File Type Control rule bypass
Weaknesses		CWE-20
References		https://help.zscaler.com/zia/release-upgrade-summary-2026
Metrics		cvssV3_1 `{'score': 4.4, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:L/I:L/A:N'}`

Subscriptions

No data.

MITRE

Status: PUBLISHED

Assigner: Zscaler

Published: 2026-09-18T14:01:10.683Z

Updated: 2026-09-18T17:47:19.524Z

Reserved: 2026-02-05T05:00:40.581Z

Link: CVE-2026-25684

Vulnrichment

Updated: 2026-09-18T17:47:05.615Z

NVD

Status : Awaiting Analysis

Published: 2026-09-18T15:17:07.837

Modified: 2026-09-18T19:08:02.707

Link: CVE-2026-25684

Redhat

No data.

OpenCVE Enrichment

Updated: 2026-09-18T23:00:06Z

Weaknesses

CWE-20

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-25684", "assignerOrgId": "73c6f63b-efac-410d-a0a9-569700f85a04", "state": "PUBLISHED", "assignerShortName": "Zscaler", "dateReserved": "2026-02-05T05:00:40.581Z", "datePublished": "2026-09-18T14:01:10.683Z", "dateUpdated": "2026-09-18T17:47:19.524Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "73c6f63b-efac-410d-a0a9-569700f85a04", "shortName": "Zscaler", "dateUpdated": "2026-09-18T14:01:10.683Z"}, "title": "File Type Control rule bypass", "datePublic": "2026-09-18T14:00:00.000Z", "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-20", "description": "CWE-20 Improper input validation", "type": "CWE"}]}], "impacts": [{"capecId": "CAPEC-554", "descriptions": [{"lang": "en", "value": "CAPEC-554 Functionality Bypass"}]}], "affected": [{"vendor": "Zscaler", "product": "ZIA File Type Control", "platforms": ["Cloud"], "versions": [{"status": "unaffected", "version": "0", "lessThan": "6.2r (current)", "versionType": "custom"}], "defaultStatus": "unaffected"}], "descriptions": [{"lang": "en", "value": "A file type attribution issue in Zscaler Internet Access File Type Control evaluation rules may allow improper evaluation of File Type Control policies in rare circumstances.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "A file type attribution issue in Zscaler Internet Access File Type Control evaluation rules may allow improper evaluation of File Type Control policies in rare circumstances."}]}], "references": [{"url": "https://help.zscaler.com/zia/release-upgrade-summary-2026"}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV3_1": {"version": "3.1", "attackVector": "NETWORK", "attackComplexity": "HIGH", "privilegesRequired": "LOW", "userInteraction": "REQUIRED", "scope": "CHANGED", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "availabilityImpact": "NONE", "baseSeverity": "MEDIUM", "baseScore": 4.4, "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:L/I:L/A:N"}}], "credits": [{"lang": "en", "value": "Nate Subra and Nathan Fowler", "type": "finder"}], "source": {"discovery": "UNKNOWN"}, "x_generator": {"engine": "Vulnogram 1.0.5"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-09-18T17:46:54.756551Z", "id": "CVE-2026-25684", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-09-18T17:47:19.524Z"}}]}}

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-25684", "assignerOrgId": "73c6f63b-efac-410d-a0a9-569700f85a04", "state": "PUBLISHED", "assignerShortName": "Zscaler", "dateReserved": "2026-02-05T05:00:40.581Z", "datePublished": "2026-09-18T14:01:10.683Z", "dateUpdated": "2026-09-18T17:47:19.524Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "73c6f63b-efac-410d-a0a9-569700f85a04", "shortName": "Zscaler", "dateUpdated": "2026-09-18T14:01:10.683Z"}, "title": "File Type Control rule bypass", "datePublic": "2026-09-18T14:00:00.000Z", "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-20", "description": "CWE-20 Improper input validation", "type": "CWE"}]}], "impacts": [{"capecId": "CAPEC-554", "descriptions": [{"lang": "en", "value": "CAPEC-554 Functionality Bypass"}]}], "affected": [{"vendor": "Zscaler", "product": "ZIA File Type Control", "platforms": ["Cloud"], "versions": [{"status": "unaffected", "version": "0", "lessThan": "6.2r (current)", "versionType": "custom"}], "defaultStatus": "unaffected"}], "descriptions": [{"lang": "en", "value": "A file type attribution issue in Zscaler Internet Access File Type Control evaluation rules may allow improper evaluation of File Type Control policies in rare circumstances.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "A file type attribution issue in Zscaler Internet Access File Type Control evaluation rules may allow improper evaluation of File Type Control policies in rare circumstances."}]}], "references": [{"url": "https://help.zscaler.com/zia/release-upgrade-summary-2026"}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV3_1": {"version": "3.1", "attackVector": "NETWORK", "attackComplexity": "HIGH", "privilegesRequired": "LOW", "userInteraction": "REQUIRED", "scope": "CHANGED", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "availabilityImpact": "NONE", "baseSeverity": "MEDIUM", "baseScore": 4.4, "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:L/I:L/A:N"}}], "credits": [{"lang": "en", "value": "Nate Subra and Nathan Fowler", "type": "finder"}], "source": {"discovery": "UNKNOWN"}, "x_generator": {"engine": "Vulnogram 1.0.5"}}, "adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-25684", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-09-18T17:46:54.756551Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-09-18T17:47:05.615Z"}}]}}