CVE-2026-120861 - Vulnerability Details - OpenCVE

Memory overflow / improper handling in GSLB and geolocation (MEP, static-proximity, config-sync) can lead to unpredictable or erroneous behavior or Denial of Service in Citrix NetScaler

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact None

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact High

Subsequent System Confidentiality Impact Low

Subsequent System Integrity Impact Low

Subsequent System Availability Impact Low

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.

No data.

No data.

No data.

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=CTX697305

History

Fri, 13 Nov 2026 08:15:00 +0000

Type	Values Removed	Values Added
Description		Memory overflow / improper handling in GSLB and geolocation (MEP, static-proximity, config-sync) can lead to unpredictable or erroneous behavior or Denial of Service in Citrix NetScaler
Title		Memory overflow / improper handling in GSLB and geolocation (MEP, static-proximity, config-sync) can lead to unpredictable or erroneous behavior or Denial of Service in Citrix NetScaler
References		https://support.citrix.com/support-home/kbsearch/article?articleNumber=CTX697305
Metrics		cvssV4_0 `{'score': 8.7, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:L/SI:L/SA:L'}`

Projects

Sign in to view the affected projects.

MITRE

Status: PUBLISHED

Assigner: NetScaler

Published: 2026-11-13T07:58:38.809Z

Updated: 2026-11-13T07:58:38.809Z

Reserved: 2026-11-03T00:53:55.696Z

Link: CVE-2026-120861

Vulnrichment

No data.

NVD

Status : Received

Published: 2026-11-13T08:17:16.760

Modified: 2026-11-13T08:17:16.760

Link: CVE-2026-120861

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

No weakness.

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-120861", "assignerOrgId": "50a63c94-1ea7-4568-8c11-eb79e7c5a2b5", "state": "PUBLISHED", "assignerShortName": "NetScaler", "dateReserved": "2026-11-03T00:53:55.696Z", "datePublished": "2026-11-13T07:58:38.809Z", "dateUpdated": "2026-11-13T07:58:38.809Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "50a63c94-1ea7-4568-8c11-eb79e7c5a2b5", "shortName": "NetScaler", "dateUpdated": "2026-11-13T07:58:38.809Z"}, "title": "Memory overflow / improper handling in GSLB and geolocation (MEP, static-proximity, config-sync) can lead to unpredictable or erroneous behavior or Denial of Service in Citrix NetScaler", "datePublic": "2026-11-12T23:05:00.000Z", "affected": [{"vendor": "Citrix", "product": "NetScaler ADC", "versions": [{"status": "affected", "version": "0", "lessThan": "14.1-73.57", "versionType": "patch"}, {"status": "affected", "version": "0", "lessThan": "13.1-64.39", "versionType": "patch"}, {"status": "affected", "version": "0", "lessThan": "14.1-73.58 FIPS", "versionType": "patch"}, {"status": "affected", "version": "0", "lessThan": "13.1-37.293 FIPs and NDcPP", "versionType": "patch"}], "defaultStatus": "unaffected"}, {"vendor": "Citrix", "product": "NetScaler Gateway", "versions": [{"status": "affected", "version": "0", "lessThan": "14.1-73.57", "versionType": "patch"}, {"status": "affected", "version": "0", "lessThan": "13.1-64.39", "versionType": "patch"}], "defaultStatus": "unaffected"}], "descriptions": [{"lang": "en", "value": "Memory overflow / improper handling in GSLB and geolocation (MEP, static-proximity, config-sync) can lead to unpredictable or erroneous behavior or Denial of Service in Citrix NetScaler", "supportingMedia": [{"type": "text/html", "base64": false, "value": "Memory overflow / improper handling in GSLB and geolocation (MEP, static-proximity, config-sync) can lead to unpredictable or erroneous behavior or Denial of Service in Citrix NetScaler"}]}], "references": [{"url": "https://support.citrix.com/support-home/kbsearch/article?articleNumber=CTX697305"}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV4_0": {"attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "userInteraction": "NONE", "vulnConfidentialityImpact": "NONE", "subConfidentialityImpact": "LOW", "vulnIntegrityImpact": "NONE", "subIntegrityImpact": "LOW", "vulnAvailabilityImpact": "HIGH", "subAvailabilityImpact": "LOW", "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": "HIGH", "baseScore": 8.7, "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:L/SI:L/SA:L"}}], "source": {"discovery": "UNKNOWN"}, "x_generator": {"engine": "Vulnogram 1.0.5"}}}}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "NetScaler ADC", "vendor": "Citrix", "versions": [{"lessThan": "14.1-73.57", "status": "affected", "version": "0", "versionType": "patch"}, {"lessThan": "13.1-64.39", "status": "affected", "version": "0", "versionType": "patch"}, {"lessThan": "14.1-73.58 FIPS", "status": "affected", "version": "0", "versionType": "patch"}, {"lessThan": "13.1-37.293 FIPs and NDcPP", "status": "affected", "version": "0", "versionType": "patch"}]}, {"defaultStatus": "unaffected", "product": "NetScaler Gateway", "vendor": "Citrix", "versions": [{"lessThan": "14.1-73.57", "status": "affected", "version": "0", "versionType": "patch"}, {"lessThan": "13.1-64.39", "status": "affected", "version": "0", "versionType": "patch"}]}], "source": "50a63c94-1ea7-4568-8c11-eb79e7c5a2b5"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Memory overflow / improper handling in GSLB and geolocation (MEP, static-proximity, config-sync) can lead to unpredictable or erroneous behavior or Denial of Service in Citrix NetScaler"}], "id": "CVE-2026-120861", "lastModified": "2026-11-13T08:17:16.760", "metrics": {"cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 8.7, "baseSeverity": "HIGH", "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": "LOW", "subConfidentialityImpact": "LOW", "subIntegrityImpact": "LOW", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:L/SI:L/SA:L/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": "HIGH", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "50a63c94-1ea7-4568-8c11-eb79e7c5a2b5", "type": "Secondary"}]}, "published": "2026-11-13T08:17:16.760", "references": [{"source": "50a63c94-1ea7-4568-8c11-eb79e7c5a2b5", "url": "https://support.citrix.com/support-home/kbsearch/article?articleNumber=CTX697305"}], "sourceIdentifier": "50a63c94-1ea7-4568-8c11-eb79e7c5a2b5", "vulnStatus": "Received"}