CVE-2026-75925

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-75925", "assignerOrgId": "7d14cffa-0d7d-4270-9dc0-52cabd5a23a6", "state": "PUBLISHED", "assignerShortName": "icscert", "dateReserved": "2026-08-18T15:31:34.250Z", "datePublished": "2026-09-04T21:19:02.213Z", "dateUpdated": "2026-09-07T11:17:27.215Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "7d14cffa-0d7d-4270-9dc0-52cabd5a23a6", "shortName": "icscert", "dateUpdated": "2026-09-04T21:19:02.213Z"}, "title": "IXON VPN Client CRLF Injection", "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-93", "description": "CWE-93", "type": "CWE"}]}], "affected": [{"vendor": "IXON", "product": "IXON VPN Client", "versions": [{"status": "affected", "version": "0", "lessThan": "1.4.7", "versionType": "custom"}, {"status": "unaffected", "version": "1.4.7"}], "defaultStatus": "unaffected"}], "descriptions": [{"lang": "en", "value": "Improper neutralization of CRLF sequences in IXON VPN Client before version 1.4.7 allows an attacker to execute commands as root or SYSTEM. Configuration values accepted by the local service are written to a file later consumed by a privileged subprocess, without line-ending sequences being neutralized, which allows additional directives to be introduced into that file. The configuration interface accepts changes without authenticating or verifying the origin of the requester. The injected configuration persists on disk across restarts of the client and the operating system, and the VPN connection continues to function normally, so there is no behavioral change visible to the user.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "Improper neutralization of CRLF sequences in IXON VPN Client before version 1.4.7 allows an attacker to execute commands as root or SYSTEM. Configuration values accepted by the local service are written to a file later consumed by a privileged subprocess, without line-ending sequences being neutralized, which allows additional directives to be introduced into that file. The configuration interface accepts changes without authenticating or verifying the origin of the requester. The injected configuration persists on disk across restarts of the client and the operating system, and the VPN connection continues to function normally, so there is no behavioral change visible to the user."}]}], "references": [{"url": "https://www.ixon.cloud/Advisories/ADV-2026-08-05.pdf"}, {"url": "https://www.cisa.gov/news-events/ics-advisories/icsa-26-246-02"}, {"url": "https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-246-02.json"}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV3_1": {"version": "3.1", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "CHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH", "baseSeverity": "CRITICAL", "baseScore": 9.6, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H"}}, {"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV4_0": {"attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "userInteraction": "PASSIVE", "vulnConfidentialityImpact": "HIGH", "subConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "subIntegrityImpact": "HIGH", "vulnAvailabilityImpact": "HIGH", "subAvailabilityImpact": "HIGH", "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": "CRITICAL", "baseScore": 9.4, "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H"}}], "solutions": [{"lang": "en", "value": "IXON recommends updating the IXON VPN client to version 1.4.7 or later on every computer where it is installed.\n\n\n\n\nAs of August 5, 2026, IXON cloud rejects connections from clients below v1.4.7 at both the portal and the back-end API. Since the privileged subprocess and injected listener are only created when the client connects, unpatched installations cannot complete the exploit chain.\n\n\n\n\nIf the client is no longer needed, IXON recommends uninstalling the VPN client from the computer.\n\n\n\n\nFor more information please refer to the IXON Trust Center Advisory at:\u00a0\n https://www.ixon.cloud/Advisories/ADV-2026-08-05.pdf https://www.ixon.cloud/Advisories/ADV-2026-08-05.pdf%60", "supportingMedia": [{"type": "text/html", "base64": false, "value": "<p>IXON recommends updating the IXON VPN client to version 1.4.7 or later on every computer where it is installed.</p>\n<p>As of August 5, 2026, IXON cloud rejects connections from clients below v1.4.7 at both the portal and the back-end API. Since the privileged subprocess and injected listener are only created when the client connects, unpatched installations cannot complete the exploit chain.</p>\n<p>If the client is no longer needed, IXON recommends uninstalling the VPN client from the computer.</p>\n<p>For more information please refer to the IXON Trust Center Advisory at:&nbsp;<br><a href=\"https://www.ixon.cloud/Advisories/ADV-2026-08-05.pdf%60\">https://www.ixon.cloud/Advisories/ADV-2026-08-05.pdf</a></p>"}]}], "credits": [{"lang": "en", "value": "Luuk van Rheden of IXON discovered this vulnerability.", "type": "finder"}, {"lang": "en", "value": "Stan van Duijnhoven of IXON reported this vulnerability to CISA.", "type": "reporter"}], "source": {"advisory": "ICSA-26-246-02", "discovery": "INTERNAL"}, "x_generator": {"engine": "Vulnogram 1.0.5"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-75925", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2026-09-07T11:09:20.223794Z"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-09-07T11:17:27.215Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-75925", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2026-09-07T11:09:20.223794Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-09-07T11:15:35.882Z"}}], "cna": {"title": "IXON VPN Client CRLF Injection", "source": {"advisory": "ICSA-26-246-02", "discovery": "INTERNAL"}, "credits": [{"lang": "en", "type": "finder", "value": "Luuk van Rheden of IXON discovered this vulnerability."}, {"lang": "en", "type": "reporter", "value": "Stan van Duijnhoven of IXON reported this vulnerability to CISA."}], "metrics": [{"format": "CVSS", "cvssV3_1": {"scope": "CHANGED", "version": "3.1", "baseScore": 9.6, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "scenarios": [{"lang": "en", "value": "GENERAL"}]}, {"format": "CVSS", "cvssV4_0": {"Safety": "NOT_DEFINED", "version": "4.0", "Recovery": "NOT_DEFINED", "baseScore": 9.4, "Automatable": "NOT_DEFINED", "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H", "exploitMaturity": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "userInteraction": "PASSIVE", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "subIntegrityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "subAvailabilityImpact": "HIGH", "vulnAvailabilityImpact": "HIGH", "subConfidentialityImpact": "HIGH", "vulnConfidentialityImpact": "HIGH", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "affected": [{"vendor": "IXON", "product": "IXON VPN Client", "versions": [{"status": "affected", "version": "0", "lessThan": "1.4.7", "versionType": "custom"}, {"status": "unaffected", "version": "1.4.7"}], "defaultStatus": "unaffected"}], "solutions": [{"lang": "en", "value": "IXON recommends updating the IXON VPN client to version 1.4.7 or later on every computer where it is installed.\n\n\n\n\nAs of August 5, 2026, IXON cloud rejects connections from clients below v1.4.7 at both the portal and the back-end API. Since the privileged subprocess and injected listener are only created when the client connects, unpatched installations cannot complete the exploit chain.\n\n\n\n\nIf the client is no longer needed, IXON recommends uninstalling the VPN client from the computer.\n\n\n\n\nFor more information please refer to the IXON Trust Center Advisory at:\u00a0\n https://www.ixon.cloud/Advisories/ADV-2026-08-05.pdf https://www.ixon.cloud/Advisories/ADV-2026-08-05.pdf%60", "supportingMedia": [{"type": "text/html", "value": "<p>IXON recommends updating the IXON VPN client to version 1.4.7 or later on every computer where it is installed.</p>\n<p>As of August 5, 2026, IXON cloud rejects connections from clients below v1.4.7 at both the portal and the back-end API. Since the privileged subprocess and injected listener are only created when the client connects, unpatched installations cannot complete the exploit chain.</p>\n<p>If the client is no longer needed, IXON recommends uninstalling the VPN client from the computer.</p>\n<p>For more information please refer to the IXON Trust Center Advisory at:&nbsp;<br><a href=\"https://www.ixon.cloud/Advisories/ADV-2026-08-05.pdf%60\">https://www.ixon.cloud/Advisories/ADV-2026-08-05.pdf</a></p>", "base64": false}]}], "references": [{"url": "https://www.ixon.cloud/Advisories/ADV-2026-08-05.pdf"}, {"url": "https://www.cisa.gov/news-events/ics-advisories/icsa-26-246-02"}, {"url": "https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-246-02.json"}], "x_generator": {"engine": "Vulnogram 1.0.5"}, "descriptions": [{"lang": "en", "value": "Improper neutralization of CRLF sequences in IXON VPN Client before version 1.4.7 allows an attacker to execute commands as root or SYSTEM. Configuration values accepted by the local service are written to a file later consumed by a privileged subprocess, without line-ending sequences being neutralized, which allows additional directives to be introduced into that file. The configuration interface accepts changes without authenticating or verifying the origin of the requester. The injected configuration persists on disk across restarts of the client and the operating system, and the VPN connection continues to function normally, so there is no behavioral change visible to the user.", "supportingMedia": [{"type": "text/html", "value": "Improper neutralization of CRLF sequences in IXON VPN Client before version 1.4.7 allows an attacker to execute commands as root or SYSTEM. Configuration values accepted by the local service are written to a file later consumed by a privileged subprocess, without line-ending sequences being neutralized, which allows additional directives to be introduced into that file. The configuration interface accepts changes without authenticating or verifying the origin of the requester. The injected configuration persists on disk across restarts of the client and the operating system, and the VPN connection continues to function normally, so there is no behavioral change visible to the user.", "base64": false}]}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-93", "description": "CWE-93"}]}], "providerMetadata": {"orgId": "7d14cffa-0d7d-4270-9dc0-52cabd5a23a6", "shortName": "icscert", "dateUpdated": "2026-09-04T21:19:02.213Z"}}}, "cveMetadata": {"cveId": "CVE-2026-75925", "state": "PUBLISHED", "dateUpdated": "2026-09-07T11:17:27.215Z", "dateReserved": "2026-08-18T15:31:34.250Z", "assignerOrgId": "7d14cffa-0d7d-4270-9dc0-52cabd5a23a6", "datePublished": "2026-09-04T21:19:02.213Z", "assignerShortName": "icscert"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "IXON VPN Client", "vendor": "IXON", "versions": [{"lessThan": "1.4.7", "status": "affected", "version": "0", "versionType": "custom"}, {"status": "unaffected", "version": "1.4.7"}]}], "source": "ics-cert@hq.dhs.gov"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Improper neutralization of CRLF sequences in IXON VPN Client before version 1.4.7 allows an attacker to execute commands as root or SYSTEM. Configuration values accepted by the local service are written to a file later consumed by a privileged subprocess, without line-ending sequences being neutralized, which allows additional directives to be introduced into that file. The configuration interface accepts changes without authenticating or verifying the origin of the requester. The injected configuration persists on disk across restarts of the client and the operating system, and the VPN connection continues to function normally, so there is no behavioral change visible to the user."}], "id": "CVE-2026-75925", "lastModified": "2026-09-08T15:28:33.090", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.6, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 6.0, "source": "ics-cert@hq.dhs.gov", "type": "Secondary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 9.4, "baseSeverity": "CRITICAL", "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": "HIGH", "subConfidentialityImpact": "HIGH", "subIntegrityImpact": "HIGH", "userInteraction": "PASSIVE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/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": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "ics-cert@hq.dhs.gov", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-75925", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-09-07T11:09:20.223794Z", "version": "2.0.3"}}]}, "published": "2026-09-04T22:17:18.017", "references": [{"source": "ics-cert@hq.dhs.gov", "url": "https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-246-02.json"}, {"source": "ics-cert@hq.dhs.gov", "url": "https://www.cisa.gov/news-events/ics-advisories/icsa-26-246-02"}, {"source": "ics-cert@hq.dhs.gov", "url": "https://www.ixon.cloud/Advisories/ADV-2026-08-05.pdf"}], "sourceIdentifier": "ics-cert@hq.dhs.gov", "vulnStatus": "Awaiting Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-93"}], "source": "ics-cert@hq.dhs.gov", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,1.4.7)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "1.4.7"}}], "enrichment": {"confidence": 100.0, "confidence_source": "cna", "scores": [{"score": 100.0, "source": "cna"}]}, "original": {"product": "IXON VPN Client", "source": "cna", "vendor": "IXON"}, "product": "ixon_vpn_client", "vendor": "ixon"}], "created": "2026-09-04T22:30:07.235814+00:00", "updated": "2026-09-07T08:25:39.734843+00:00", "vendors": ["ixon", "ixon$PRODUCT$ixon_vpn_client"]}