CVE-2026-120861

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

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Published Nov 13, 2026 CVSS 4.0 · 8.7 High EPSS < 1% KEV · Not listed

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

Analysis

No analysis available yet

Affected Products

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

NetScaler ADC

unaffected

Version	Status	Constraints
`0`	affected	< 14.1-73.57
`0`	affected	< 13.1-64.39
`0`	affected	< 14.1-73.58 FIPS
`0`	affected	< 13.1-37.293 FIPs and NDcPP

Citrix

NetScaler Gateway

unaffected

Version	Status	Constraints
`0`	affected	< 14.1-73.57
`0`	affected	< 13.1-64.39

No data.

No data available yet.

Remediation

No remediation available yet

Tracking

Advisories

No advisories available

Metrics

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.

Exploit prediction score: < 1% (0.310% probability within 30 days)

Key SSVC decision points have not yet been added.

References

Link	Providers
https://support.citrix.com/support-home/kbsearch/article?articleNumber=CTX697305

History

Nov 13, 2026 8:15 AM Description updated. Title updated. Added references. Scoring metrics updated View changes

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'}`