CVE-2026-3055

{"id": "CVE-2026-3055", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 9.8, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 3.9}], "cvssMetricV40": [{"type": "Secondary", "source": "50a63c94-1ea7-4568-8c11-eb79e7c5a2b5", "cvssData": {"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/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", "exploitMaturity": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "userInteraction": "NONE", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "subIntegrityImpact": "LOW", "vulnIntegrityImpact": "HIGH", "integrityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "subAvailabilityImpact": "LOW", "vulnAvailabilityImpact": "HIGH", "availabilityRequirement": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "subConfidentialityImpact": "LOW", "vulnConfidentialityImpact": "HIGH", "confidentialityRequirement": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED"}}]}, "published": "2026-03-23T21:17:17.477", "references": [{"url": "https://support.citrix.com/support-home/kbsearch/article?articleNumber=CTX696300", "tags": ["Vendor Advisory"], "source": "50a63c94-1ea7-4568-8c11-eb79e7c5a2b5"}, {"url": "https://labs.watchtowr.com/please-we-beg-just-one-weekend-free-of-appliances-citrix-netscaler-cve-2026-3055-memory-overread-part-2/", "tags": ["Exploit", "Third Party Advisory"], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"}, {"url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-3055", "tags": ["US Government Resource"], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "50a63c94-1ea7-4568-8c11-eb79e7c5a2b5", "description": [{"lang": "en", "value": "CWE-125"}]}], "descriptions": [{"lang": "en", "value": "Insufficient input validation in\u00a0NetScaler ADC and NetScaler Gateway when\u00a0configured as a SAML IDP\u00a0leading to\u00a0memory overread"}, {"lang": "es", "value": "Validaci\u00f3n de entrada insuficiente en NetScaler ADC y NetScaler Gateway cuando se configura como un IDP SAML, lo que lleva a una sobrelectura de memoria."}], "lastModified": "2026-03-31T13:18:14.213", "cisaActionDue": "2026-04-02", "cisaExploitAdd": "2026-03-30", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:fips:*:*:*", "vulnerable": true, "matchCriteriaId": "453E034F-91B1-48E0-A0C2-4DE99EA221DB", "versionEndExcluding": "13.1-37.262", "versionStartIncluding": "13.1"}, {"criteria": "cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:ndcpp:*:*:*", "vulnerable": true, "matchCriteriaId": "5C536886-5796-4FB4-BB94-BE34DE32339A", "versionEndExcluding": "13.1-37.262", "versionStartIncluding": "13.1"}, {"criteria": "cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:-:*:*:*", "vulnerable": true, "matchCriteriaId": "E2DFB77E-B610-4FAC-84EB-CAB9D68F16F4", "versionEndExcluding": "13.1-62.23", "versionStartIncluding": "13.1"}, {"criteria": "cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:-:*:*:*", "vulnerable": true, "matchCriteriaId": "F1145E85-5AEC-4584-A385-1DAA2084CD9F", "versionEndExcluding": "14.1-60.58", "versionStartIncluding": "14.1"}], "operator": "OR"}]}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:citrix:netscaler_gateway:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "46A54BC1-9EA0-4F74-81D1-48FB04AE4479", "versionEndExcluding": "13.1-62.23", "versionStartIncluding": "13.1"}, {"criteria": "cpe:2.3:a:citrix:netscaler_gateway:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "FEA94A98-44D9-4A3A-8713-7A4963CD820B", "versionEndExcluding": "14.1-60.58", "versionStartIncluding": "14.1"}], "operator": "OR"}]}], "sourceIdentifier": "50a63c94-1ea7-4568-8c11-eb79e7c5a2b5", "cisaRequiredAction": "Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.", "cisaVulnerabilityName": "Citrix NetScaler Out-of-Bounds Read Vulnerability"}