CVE-2026-53564 - Vulnerability Details - OpenCVE

Vulnerability in Citrix UniconOS leading to Arbitrary file read and write

This issue affects UniconOS: before 2607.2 CR and before 2603 LTSR CU2.

Attack Vector Adjacent Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction Passive

Vulnerable System Confidentiality Impact Low

Vulnerable System Integrity Impact Low

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

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

Vendor Product Default status Versions

Citrix

UniconOS

unaffected

Version	Status	Constraints
`0`	affected	< 2607.2 CR
`0`	affected	< 2603 LTSR CU2

No data.

No data.

No data.

Project Subscriptions

No data.

Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References

Link	Providers
https://support.citrix.com/support-home/kbsearch/article?articleNumber=CTX697187

History

Tue, 13 Oct 2026 22:30:00 +0000

Type	Values Removed	Values Added
Description		Vulnerability in Citrix UniconOS leading to Arbitrary file read and write This issue affects UniconOS: before 2607.2 CR and before 2603 LTSR CU2.
Title		Arbitrary file read and write
References		https://support.citrix.com/support-home/kbsearch/article?articleNumber=CTX697187
Metrics		cvssV4_0 `{'score': 5.1, 'vector': 'CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N'}`

Projects

Sign in to view the affected projects.

MITRE

Status: PUBLISHED

Assigner: Citrix

Published: 2026-10-13T22:07:38.794Z

Updated: 2026-10-13T22:07:38.794Z

Reserved: 2026-06-09T18:32:47.375Z

Link: CVE-2026-53564

Vulnrichment

No data.

NVD

Status : Received

Published: 2026-10-13T23:17:33.007

Modified: 2026-10-13T23:17:33.007

Link: CVE-2026-53564

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

No weakness.

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-53564", "assignerOrgId": "e437aed5-38e0-4fa3-a98b-cb73e7acaec6", "state": "PUBLISHED", "assignerShortName": "Citrix", "dateReserved": "2026-06-09T18:32:47.375Z", "datePublished": "2026-10-13T22:07:38.794Z", "dateUpdated": "2026-10-13T22:07:38.794Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "e437aed5-38e0-4fa3-a98b-cb73e7acaec6", "shortName": "Citrix", "dateUpdated": "2026-10-13T22:07:38.794Z"}, "title": "Arbitrary file read and write", "datePublic": "2026-10-13T22:05:00.000Z", "affected": [{"vendor": "Citrix", "product": "UniconOS", "versions": [{"status": "affected", "version": "0", "lessThan": "2607.2 CR", "versionType": "Patch"}, {"status": "affected", "version": "0", "lessThan": "2603 LTSR CU2", "versionType": "patch"}], "defaultStatus": "unaffected"}], "descriptions": [{"lang": "en", "value": "Vulnerability in Citrix UniconOS leading to\u00a0Arbitrary file read and write\n\nThis issue affects UniconOS: before 2607.2 CR and before 2603 LTSR CU2.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "Vulnerability in Citrix UniconOS leading to Arbitrary file read and write<p>This issue affects UniconOS: before 2607.2 CR and before 2603 LTSR CU2.</p>"}]}], "references": [{"url": "https://support.citrix.com/support-home/kbsearch/article?articleNumber=CTX697187"}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV4_0": {"attackVector": "ADJACENT", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "userInteraction": "PASSIVE", "vulnConfidentialityImpact": "LOW", "subConfidentialityImpact": "NONE", "vulnIntegrityImpact": "LOW", "subIntegrityImpact": "NONE", "vulnAvailabilityImpact": "NONE", "subAvailabilityImpact": "NONE", "exploitMaturity": "NOT_DEFINED", "Safety": "NOT_DEFINED", "Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "valueDensity": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "version": "4.0", "baseSeverity": "MEDIUM", "baseScore": 5.1, "vectorString": "CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N"}}], "source": {"discovery": "UNKNOWN"}, "x_generator": {"engine": "Vulnogram 1.0.5"}}}}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "UniconOS", "vendor": "Citrix", "versions": [{"lessThan": "2607.2 CR", "status": "affected", "version": "0", "versionType": "Patch"}, {"lessThan": "2603 LTSR CU2", "status": "affected", "version": "0", "versionType": "patch"}]}], "source": "secure@citrix.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Vulnerability in Citrix UniconOS leading to\u00a0Arbitrary file read and write\n\nThis issue affects UniconOS: before 2607.2 CR and before 2603 LTSR CU2."}], "id": "CVE-2026-53564", "lastModified": "2026-10-13T23:17:33.007", "metrics": {"cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "ADJACENT", "availabilityRequirement": "NOT_DEFINED", "baseScore": 5.1, "baseSeverity": "MEDIUM", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "NONE", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "PASSIVE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "version": "4.0", "vulnAvailabilityImpact": "NONE", "vulnConfidentialityImpact": "LOW", "vulnIntegrityImpact": "LOW", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "secure@citrix.com", "type": "Secondary"}]}, "published": "2026-10-13T23:17:33.007", "references": [{"source": "secure@citrix.com", "url": "https://support.citrix.com/support-home/kbsearch/article?articleNumber=CTX697187"}], "sourceIdentifier": "secure@citrix.com", "vulnStatus": "Received"}