CVE-2026-3055 - Vulnerability Details - OpenCVE

Insufficient input validation in NetScaler ADC and NetScaler Gateway when configured as a SAML IDP leading to memory overread

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact High

Vulnerable System Integrity Impact High

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.

Exploitation none

Automatable yes

Technical Impact total

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

Vendor Product Default status Versions

NetScaler

ADC

unaffected

Version	Status	Constraints
`14.1`	affected	< 66.59
`13.1`	affected	< 62.23
`13.1 FIPS and NDcPP`	affected	< 37.262

NetScaler

Gateway

unaffected

Version	Status	Constraints
`14.1`	affected	< 66.59
`13.1`	affected	< 62.23

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=CTX696300

History

Tue, 24 Mar 2026 02:30:00 +0000

Type	Values Removed	Values Added
Description		Insufficient input validation in NetScaler ADC and NetScaler Gateway when configured as a SAML IDP leading to memory overread
Title		Insufficient input validation leading to memory overread
Weaknesses		CWE-125
References		https://support.citrix.com/support-home/kbsearch/article?articleNumber=CTX696300
Metrics		cvssV4_0 `{'score': 9.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L'}` ssvc `{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}`

Projects

Sign in to view the affected projects.

MITRE

Status: PUBLISHED

Assigner: NetScaler

Published: 2026-03-23T20:21:27.107Z

Updated: 2026-03-24T03:56:07.218Z

Reserved: 2026-02-23T18:00:08.900Z

Link: CVE-2026-3055

Vulnrichment

Updated: 2026-03-23T20:38:42.481Z

NVD

Status : Received

Published: 2026-03-23T21:17:17.477

Modified: 2026-03-23T21:17:17.477

Link: CVE-2026-3055

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

CWE-125

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-3055", "assignerOrgId": "50a63c94-1ea7-4568-8c11-eb79e7c5a2b5", "state": "PUBLISHED", "assignerShortName": "NetScaler", "dateReserved": "2026-02-23T18:00:08.900Z", "datePublished": "2026-03-23T20:21:27.107Z", "dateUpdated": "2026-03-24T03:56:07.218Z"}, "containers": {"cna": {"affected": [{"defaultStatus": "unaffected", "product": "ADC", "vendor": "NetScaler", "versions": [{"lessThan": "66.59", "status": "affected", "version": "14.1", "versionType": "patch"}, {"lessThan": "62.23", "status": "affected", "version": "13.1", "versionType": "patch"}, {"lessThan": "37.262", "status": "affected", "version": "13.1 FIPS and NDcPP", "versionType": "patch"}]}, {"defaultStatus": "unaffected", "product": "Gateway", "vendor": "NetScaler", "versions": [{"lessThan": "66.59", "status": "affected", "version": "14.1", "versionType": "patch"}, {"lessThan": "62.23", "status": "affected", "version": "13.1", "versionType": "patch"}]}], "datePublic": "2026-03-23T19:20:00.000Z", "descriptions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "Insufficient input validation in <span style=\"background-color: rgb(255, 255, 255);\">NetScaler ADC and NetScaler Gateway when<span style=\"background-color: rgb(255, 255, 255);\"> configured as a SAML IDP </span>leading to<span style=\"background-color: rgb(255, 255, 255);\"> memory overread</span></span><br>"}], "value": "Insufficient input validation in\u00a0NetScaler ADC and NetScaler Gateway when\u00a0configured as a SAML IDP\u00a0leading to\u00a0memory overread"}], "metrics": [{"cvssV4_0": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "baseScore": 9.3, "baseSeverity": "CRITICAL", "exploitMaturity": "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:H/VI:H/VA:H/SC:L/SI:L/SA:L", "version": "4.0", "vulnAvailabilityImpact": "HIGH", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "problemTypes": [{"descriptions": [{"cweId": "CWE-125", "description": "CWE-125 Out-of-bounds Read", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"orgId": "50a63c94-1ea7-4568-8c11-eb79e7c5a2b5", "shortName": "NetScaler", "dateUpdated": "2026-03-23T20:21:27.107Z"}, "references": [{"url": "https://support.citrix.com/support-home/kbsearch/article?articleNumber=CTX696300"}], "source": {"discovery": "UNKNOWN"}, "title": "Insufficient input validation leading to memory overread", "x_generator": {"engine": "Vulnogram 0.5.0"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-03-23T00:00:00+00:00", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"Technical Impact": "total"}], "role": "CISA Coordinator", "version": "2.0.3", "id": "CVE-2026-3055"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-03-24T03:56:07.218Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-3055", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2026-03-23T20:38:37.201032Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-03-23T20:38:42.481Z"}}], "cna": {"title": "Insufficient input validation leading to memory overread", "source": {"discovery": "UNKNOWN"}, "metrics": [{"format": "CVSS", "cvssV4_0": {"Safety": "NOT_DEFINED", "version": "4.0", "Recovery": "NOT_DEFINED", "baseScore": 9.3, "Automatable": "NOT_DEFINED", "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L", "exploitMaturity": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "userInteraction": "NONE", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "subIntegrityImpact": "LOW", "vulnIntegrityImpact": "HIGH", "subAvailabilityImpact": "LOW", "vulnAvailabilityImpact": "HIGH", "subConfidentialityImpact": "LOW", "vulnConfidentialityImpact": "HIGH", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "affected": [{"vendor": "NetScaler", "product": "ADC", "versions": [{"status": "affected", "version": "14.1", "lessThan": "66.59", "versionType": "patch"}, {"status": "affected", "version": "13.1", "lessThan": "62.23", "versionType": "patch"}, {"status": "affected", "version": "13.1 FIPS and NDcPP", "lessThan": "37.262", "versionType": "patch"}], "defaultStatus": "unaffected"}, {"vendor": "NetScaler", "product": "Gateway", "versions": [{"status": "affected", "version": "14.1", "lessThan": "66.59", "versionType": "patch"}, {"status": "affected", "version": "13.1", "lessThan": "62.23", "versionType": "patch"}], "defaultStatus": "unaffected"}], "datePublic": "2026-03-23T19:20:00.000Z", "references": [{"url": "https://support.citrix.com/support-home/kbsearch/article?articleNumber=CTX696300"}], "x_generator": {"engine": "Vulnogram 0.5.0"}, "descriptions": [{"lang": "en", "value": "Insufficient input validation in\u00a0NetScaler ADC and NetScaler Gateway when\u00a0configured as a SAML IDP\u00a0leading to\u00a0memory overread", "supportingMedia": [{"type": "text/html", "value": "Insufficient input validation in <span style=\"background-color: rgb(255, 255, 255);\">NetScaler ADC and NetScaler Gateway when<span style=\"background-color: rgb(255, 255, 255);\"> configured as a SAML IDP </span>leading to<span style=\"background-color: rgb(255, 255, 255);\"> memory overread</span></span><br>", "base64": false}]}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-125", "description": "CWE-125 Out-of-bounds Read"}]}], "providerMetadata": {"orgId": "50a63c94-1ea7-4568-8c11-eb79e7c5a2b5", "shortName": "NetScaler", "dateUpdated": "2026-03-23T20:21:27.107Z"}}}, "cveMetadata": {"cveId": "CVE-2026-3055", "state": "PUBLISHED", "dateUpdated": "2026-03-24T03:56:07.218Z", "dateReserved": "2026-02-23T18:00:08.900Z", "assignerOrgId": "50a63c94-1ea7-4568-8c11-eb79e7c5a2b5", "datePublished": "2026-03-23T20:21:27.107Z", "assignerShortName": "NetScaler"}, "dataVersion": "5.2"}