{ "document": { "category": "csaf_security_advisory", "csaf_version": "2.0", "distribution": { "tlp": { "label": "WHITE" } }, "lang": "nl", "notes": [ { "category": "legal_disclaimer", "text": "The Netherlands Cyber Security Center (henceforth: NCSC-NL) maintains this page to enhance access to its information and security advisories. The use of this security advisory is subject to the following terms and conditions:\n\n NCSC-NL makes every reasonable effort to ensure that the content of this page is kept up to date, and that it is accurate and complete. Nevertheless, NCSC-NL cannot entirely rule out the possibility of errors, and therefore cannot give any warranty in respect of its completeness, accuracy or continuous keeping up-to-date. The information contained in this security advisory is intended solely for the purpose of providing general information to professional users. No rights can be derived from the information provided therein.\n\n NCSC-NL and the Kingdom of the Netherlands assume no legal liability or responsibility for any damage resulting from either the use or inability of use of this security advisory. This includes damage resulting from the inaccuracy of incompleteness of the information contained in the advisory.\n This security advisory is subject to Dutch law. All disputes related to or arising from the use of this advisory will be submitted to the competent court in The Hague. This choice of means also applies to the court in summary proceedings." }, { "category": "description", "text": "Fortinet heeft kwetsbaarheden verholpen in meerdere versies van FortiSIEM (Windows Agent en algemene productversies), FortiOS, FortiPAM en FortiProxy.", "title": "Feiten" }, { "category": "description", "text": "Een kwetsbaarheid in FortiSIEM Windows Agent (versies 7.4.0 tot en met 7.4.1) met kenmerk CVE-2026-59841 stelt kwaadwillenden op hetzelfde lokale netwerk in staat om privileges te verhogen wanneer de functie ‘Supers Override’ actief is. Hierdoor kunnen kwaadwillenden willekeurige code uitvoeren en de integriteit van de agent compromitteren.\n\nDe overige kwetsbaarheden zijn door een geauthenticeerde aanvaller met verhoogde privileges op afstand, of met fysieke toegang, te misbruiken. Zie bijgevoegde referenties voor meer informatie.", "title": "Interpretaties" }, { "category": "description", "text": "Fortinet heeft updates uitgebracht om de kwetsbaarheden in FortiSIEM, FortiOS, FortiPAM en FortiProxy te verhelpen. Zie bijgevoegde referenties voor meer informatie.", "title": "Oplossingen" }, { "category": "general", "text": "medium", "title": "Kans" }, { "category": "general", "text": "high", "title": "Schade" }, { "category": "general", "text": "Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')", "title": "CWE-79" }, { "category": "general", "text": "Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')", "title": "CWE-22" }, { "category": "general", "text": "Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)", "title": "CWE-80" }, { "category": "general", "text": "Improper Restriction of Communication Channel to Intended Endpoints", "title": "CWE-923" } ], "publisher": { "category": "coordinator", "contact_details": "cert@ncsc.nl", "name": "Nationaal Cyber Security Centrum", "namespace": "https://www.ncsc.nl/" }, "references": [ { "category": "external", "summary": "Reference", "url": "https://fortiguard.fortinet.com/psirt/FG-IR-26-155" }, { "category": "external", "summary": "Reference", "url": "https://www.fortiguard.com/psirt/FG-IR-26-149" }, { "category": "external", "summary": "Reference", "url": "https://www.fortiguard.com/psirt/FG-IR-26-150" }, { "category": "external", "summary": "Reference", "url": "https://www.fortiguard.com/psirt/FG-IR-26-151" } ], "title": "Kwetsbaarheden verholpen in meerdere Fortinet producten", "tracking": { "current_release_date": "2026-07-15T13:24:19.740809Z", "generator": { "date": "2025-08-04T16:30:00Z", "engine": { "name": "V.A.", "version": "1.3" } }, "id": "NCSC-2026-0240", "initial_release_date": "2026-07-15T13:24:19.740809Z", "revision_history": [ { "date": "2026-07-15T13:24:19.740809Z", "number": "1.0.0", "summary": "Initiele versie" } ], "status": "final", "version": "1.0.0" } }, "product_tree": { "branches": [ { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:unknown/*", "product": { "name": "vers:unknown/*", "product_id": "CSAFPID-1" } } ], "category": "product_name", "name": "FortiOS" }, { "branches": [ { "category": "product_version_range", "name": "vers:unknown/*", "product": { "name": "vers:unknown/*", "product_id": "CSAFPID-2" } } ], "category": "product_name", "name": "FortiPAM" }, { "branches": [ { "category": "product_version_range", "name": "vers:unknown/*", "product": { "name": "vers:unknown/*", "product_id": "CSAFPID-3" } } ], "category": "product_name", "name": "FortiProxy" }, { "branches": [ { "category": "product_version_range", "name": "vers:unknown/*", "product": { "name": "vers:unknown/*", "product_id": "CSAFPID-4" } } ], "category": "product_name", "name": "FortiSIEM" }, { "branches": [ { "category": "product_version_range", "name": "vers:unknown/*", "product": { "name": "vers:unknown/*", "product_id": "CSAFPID-5" } } ], "category": "product_name", "name": "FortiSIEMWindowsAgent" } ], "category": "vendor", "name": "Fortinet" } ] }, "vulnerabilities": [ { "cve": "CVE-2026-59841", "cwe": { "id": "CWE-923", "name": "Improper Restriction of Communication Channel to Intended Endpoints" }, "notes": [ { "category": "other", "text": "Improper Restriction of Communication Channel to Intended Endpoints", "title": "CWE-923" }, { "category": "description", "text": "A vulnerability in Fortinet FortiSIEM Windows Agent versions 7.4.0 to 7.4.1 allows privilege escalation and arbitrary code execution via improper restriction of communication channels and hostname spoofing when the 'Supers Override' feature is enabled.", "title": "Summary" } ], "product_status": { "known_affected": [ "CSAFPID-1", "CSAFPID-2", "CSAFPID-3", "CSAFPID-4", "CSAFPID-5" ] }, "references": [ { "category": "self", "summary": "CVE-2026-59841 | NCSC-NL Website", "url": "https://vulnerabilities.ncsc.nl/csaf/v2/2026/cve-2026-59841.json" } ], "scores": [ { "cvss_v3": { "version": "3.1", "vectorString": "CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C", "baseScore": 7.5, "baseSeverity": "HIGH" }, "products": [ "CSAFPID-1", "CSAFPID-2", "CSAFPID-3", "CSAFPID-4", "CSAFPID-5" ] } ], "title": "CVE-2026-59841" }, { "cve": "CVE-2026-59839", "cwe": { "id": "CWE-22", "name": "Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')" }, "notes": [ { "category": "other", "text": "Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')", "title": "CWE-22" }, { "category": "description", "text": "A path traversal vulnerability in multiple Fortinet products including FortiOS, FortiPAM, FortiProxy, and FortiSwitch Manager may allow privileged authenticated attackers with physical access to execute unauthorized code or delete the file system via crafted CLI commands.", "title": "Summary" } ], "product_status": { "known_affected": [ "CSAFPID-1", "CSAFPID-2", "CSAFPID-3", "CSAFPID-4", "CSAFPID-5" ] }, "references": [ { "category": "self", "summary": "CVE-2026-59839 | NCSC-NL Website", "url": "https://vulnerabilities.ncsc.nl/csaf/v2/2026/cve-2026-59839.json" } ], "scores": [ { "cvss_v3": { "version": "3.1", "vectorString": "CVSS:3.1/AV:P/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H/E:P/RL:O/RC:C", "baseScore": 5.5, "baseSeverity": "MEDIUM" }, "products": [ "CSAFPID-1", "CSAFPID-2", "CSAFPID-3", "CSAFPID-4", "CSAFPID-5" ] } ], "title": "CVE-2026-59839" }, { "cve": "CVE-2026-23573", "cwe": { "id": "CWE-79", "name": "Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')" }, "notes": [ { "category": "other", "text": "Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')", "title": "CWE-79" }, { "category": "description", "text": "Multiple versions of Fortinet FortiOS, FortiPAM, FortiProxy, and FortiSwitch-Manager Agentless SSL-VPN contain a Cross-site Scripting (CWE-79) vulnerability allowing authenticated remote users to execute code or commands via crafted requests.", "title": "Summary" } ], "product_status": { "known_affected": [ "CSAFPID-1", "CSAFPID-2", "CSAFPID-3", "CSAFPID-4", "CSAFPID-5" ] }, "references": [ { "category": "self", "summary": "CVE-2026-23573 | NCSC-NL Website", "url": "https://vulnerabilities.ncsc.nl/csaf/v2/2026/cve-2026-23573.json" } ], "scores": [ { "cvss_v3": { "version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N", "baseScore": 6.1, "baseSeverity": "MEDIUM" }, "products": [ "CSAFPID-1", "CSAFPID-2", "CSAFPID-3", "CSAFPID-4", "CSAFPID-5" ] } ], "title": "CVE-2026-23573" }, { "cve": "CVE-2026-59838", "notes": [ { "category": "description", "text": "A FortiSIEM vulnerability involving improper neutralization of script-related HTML tags (CWE-80) allows a privileged administrator to execute unauthorized commands via crafted requests.", "title": "Summary" } ], "product_status": { "known_affected": [ "CSAFPID-1", "CSAFPID-2", "CSAFPID-3", "CSAFPID-4", "CSAFPID-5" ] }, "references": [ { "category": "self", "summary": "CVE-2026-59838 | NCSC-NL Website", "url": "https://vulnerabilities.ncsc.nl/csaf/v2/2026/cve-2026-59838.json" } ], "scores": [ { "cvss_v3": { "version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:L/E:P/RL:O/RC:C", "baseScore": 5.9, "baseSeverity": "MEDIUM" }, "products": [ "CSAFPID-1", "CSAFPID-2", "CSAFPID-3", "CSAFPID-4", "CSAFPID-5" ] } ], "title": "CVE-2026-59838" } ] }