Vulnerability-Lookup

CERTFR-2026-AVI-0337

Vulnerability from certfr_avis - Published: 2026-03-23 - Updated: 2026-03-23

De multiples vulnérabilités ont été découvertes dans les produits Citrix. Elles permettent à un attaquant de provoquer une atteinte à la confidentialité des données et un contournement de la politique de sécurité.

Solutions

Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).

Impacted products

Vendor	Product	Description
Citrix	NetScaler Gateway	NetScaler Gateway  versions 14.0.x antérieures à 14.1-66.59
Citrix	NetScaler ADC	NetScaler ADC versions 14.0.x antérieures à 14.1-66.59
Citrix	NetScaler ADC	NetScaler ADC 13.1-FIPS et 13.1-NDcPP versions antérieures à 13.1.37.262
Citrix	NetScaler Gateway	NetScaler Gateway  versions 13.1.x antérieures à 13.1-62.23
Citrix	NetScaler ADC	NetScaler ADC versions 13.1.x antérieures à 13.1-62.23

References

Title

Publication Time

Tags

Bulletin de sécurité Citrix CTX696300

2026-03-23

vendor-advisory

Show details on source website

JSON

To clipboard

{
  "$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
  "affected_systems": [
    {
      "description": "NetScaler Gateway\u202f versions 14.0.x ant\u00e9rieures \u00e0 14.1-66.59",
      "product": {
        "name": "NetScaler Gateway",
        "vendor": {
          "name": "Citrix",
          "scada": false
        }
      }
    },
    {
      "description": "NetScaler ADC versions 14.0.x ant\u00e9rieures \u00e0 14.1-66.59",
      "product": {
        "name": "NetScaler ADC",
        "vendor": {
          "name": "Citrix",
          "scada": false
        }
      }
    },
    {
      "description": "NetScaler ADC 13.1-FIPS et 13.1-NDcPP versions ant\u00e9rieures \u00e0 13.1.37.262",
      "product": {
        "name": "NetScaler ADC",
        "vendor": {
          "name": "Citrix",
          "scada": false
        }
      }
    },
    {
      "description": "NetScaler Gateway\u202f versions 13.1.x ant\u00e9rieures \u00e0 13.1-62.23",
      "product": {
        "name": "NetScaler Gateway",
        "vendor": {
          "name": "Citrix",
          "scada": false
        }
      }
    },
    {
      "description": "NetScaler ADC versions 13.1.x ant\u00e9rieures \u00e0 13.1-62.23",
      "product": {
        "name": "NetScaler ADC",
        "vendor": {
          "name": "Citrix",
          "scada": false
        }
      }
    }
  ],
  "affected_systems_content": "",
  "content": "## Solutions\n\nSe r\u00e9f\u00e9rer au bulletin de s\u00e9curit\u00e9 de l\u0027\u00e9diteur pour l\u0027obtention des correctifs (cf. section Documentation).",
  "cves": [
    {
      "name": "CVE-2026-4368",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-4368"
    },
    {
      "name": "CVE-2026-3055",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-3055"
    }
  ],
  "initial_release_date": "2026-03-23T00:00:00",
  "last_revision_date": "2026-03-23T00:00:00",
  "links": [],
  "reference": "CERTFR-2026-AVI-0337",
  "revisions": [
    {
      "description": "Version initiale",
      "revision_date": "2026-03-23T00:00:00.000000"
    }
  ],
  "risks": [
    {
      "description": "Contournement de la politique de s\u00e9curit\u00e9"
    },
    {
      "description": "Atteinte \u00e0 la confidentialit\u00e9 des donn\u00e9es"
    }
  ],
  "summary": "De multiples vuln\u00e9rabilit\u00e9s ont \u00e9t\u00e9 d\u00e9couvertes dans les produits Citrix. Elles permettent \u00e0 un attaquant de provoquer une atteinte \u00e0 la confidentialit\u00e9 des donn\u00e9es et un contournement de la politique de s\u00e9curit\u00e9.",
  "title": "Multiples vuln\u00e9rabilit\u00e9s dans les produits Citrix",
  "vendor_advisories": [
    {
      "published_at": "2026-03-23",
      "title": "Bulletin de s\u00e9curit\u00e9 Citrix CTX696300",
      "url": "https://support.citrix.com/support-home/kbsearch/article?articleNumber=CTX696300\u0026articleURL=NetScaler_ADC_and_NetScaler_Gateway_Security_Bulletin_for_CVE_2026_3055_and_CVE_2026_4368"
    }
  ]
}

CVE-2026-3055 (GCVE-0-2026-3055)

Vulnerability from cvelistv5 – Published: 2026-03-23 20:21 – Updated: 2026-03-31 03:55

Title

Insufficient input validation leading to memory overread

Summary

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

Severity ?

9.3 (Critical)


                        
                          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

CWE

CWE-125 - Out-of-bounds Read

Assigner

NetScaler

References

URL

Tags

https://support.citrix.com/support-home/kbsearch/…

Impacted products

Vendor

Product

Version

NetScaler

ADC

Affected: 14.1 , < 66.59 (patch)
Affected: 13.1 , < 62.23 (patch)
Affected: 13.1 FIPS and NDcPP , < 37.262 (patch)

NetScaler

Gateway

Affected: 14.1 , < 66.59 (patch)
Affected: 13.1 , < 62.23 (patch)

Date Public ?

2026-03-23 19:20

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-3055",
                "options": [
                  {
                    "Exploitation": "active"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-03-23T00:00:00+00:00",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          },
          {
            "other": {
              "content": {
                "dateAdded": "2026-03-30",
                "reference": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-3055"
              },
              "type": "kev"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-03-31T03:55:32.569Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "references": [
          {
            "tags": [
              "third-party-advisory"
            ],
            "url": "https://labs.watchtowr.com/please-we-beg-just-one-weekend-free-of-appliances-citrix-netscaler-cve-2026-3055-memory-overread-part-2/"
          },
          {
            "tags": [
              "government-resource"
            ],
            "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-3055"
          }
        ],
        "timeline": [
          {
            "lang": "en",
            "time": "2026-03-30T00:00:00.000Z",
            "value": "CVE-2026-3055 added to CISA KEV"
          }
        ],
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "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": [
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          "lang": "en",
          "supportingMedia": [
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              "base64": false,
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        }
      ],
      "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": {
        "dateUpdated": "2026-03-23T20:21:27.107Z",
        "orgId": "50a63c94-1ea7-4568-8c11-eb79e7c5a2b5",
        "shortName": "NetScaler"
      },
      "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"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "50a63c94-1ea7-4568-8c11-eb79e7c5a2b5",
    "assignerShortName": "NetScaler",
    "cveId": "CVE-2026-3055",
    "datePublished": "2026-03-23T20:21:27.107Z",
    "dateReserved": "2026-02-23T18:00:08.900Z",
    "dateUpdated": "2026-03-31T03:55:32.569Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

CVE-2026-4368 (GCVE-0-2026-4368)

Vulnerability from cvelistv5 – Published: 2026-03-23 20:09 – Updated: 2026-03-24 03:56

Title

Race Condition leading to User Session Mixup

Summary

Race Condition in NetScaler ADC and NetScaler Gateway when appliance is configured as Gateway (SSL VPN, ICA Proxy, CVPN, RDP Proxy) or AAA virtual server leading to User Session Mixup

Severity ?

7.7 (High)


                        
                          CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Assigner

NetScaler

References

URL

Tags

https://support.citrix.com/support-home/kbsearch/…

Impacted products

Vendor

Product

Version

NetScaler

ADC

Affected: 14.1.66.54 (patch)

NetScaler

Gateway

Affected: 14.1.66.54

Date Public ?

2026-03-23 20:02

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-4368",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-03-23T00:00:00+00:00",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-03-24T03:56:06.153Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "ADC",
          "vendor": "NetScaler",
          "versions": [
            {
              "status": "affected",
              "version": "14.1.66.54",
              "versionType": "patch"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "product": "Gateway",
          "vendor": "NetScaler",
          "versions": [
            {
              "status": "affected",
              "version": "14.1.66.54"
            }
          ]
        }
      ],
      "datePublic": "2026-03-23T20:02:00.000Z",
      "descriptions": [
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          "lang": "en",
          "supportingMedia": [
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      ],
      "metrics": [
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            "Automatable": "NOT_DEFINED",
            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "LOW",
            "attackRequirements": "PRESENT",
            "attackVector": "NETWORK",
            "baseScore": 7.7,
            "baseSeverity": "HIGH",
            "exploitMaturity": "NOT_DEFINED",
            "privilegesRequired": "LOW",
            "providerUrgency": "NOT_DEFINED",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "valueDensity": "NOT_DEFINED",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
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            "vulnAvailabilityImpact": "HIGH",
            "vulnConfidentialityImpact": "HIGH",
            "vulnIntegrityImpact": "HIGH",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
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      "providerMetadata": {
        "dateUpdated": "2026-03-23T20:09:44.971Z",
        "orgId": "50a63c94-1ea7-4568-8c11-eb79e7c5a2b5",
        "shortName": "NetScaler"
      },
      "references": [
        {
          "url": "https://support.citrix.com/support-home/kbsearch/article?articleNumber=CTX696300"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "Race Condition leading to User Session Mixup",
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    "assignerShortName": "NetScaler",
    "cveId": "CVE-2026-4368",
    "datePublished": "2026-03-23T20:09:44.971Z",
    "dateReserved": "2026-03-18T05:23:50.518Z",
    "dateUpdated": "2026-03-24T03:56:06.153Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Tags

Taxonomy of the tags.

All sightings related to this event Export sightings related to this event

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

CERTFR-2026-AVI-0337

Solutions

CVE-2026-3055 (GCVE-0-2026-3055)

CVE-2026-4368 (GCVE-0-2026-4368)

Tags

Sightings

Nomenclature