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Attackers can deserialize a crafted billing_data POST field and inject shell payloads through the uid field, which is passed unmodified to proc_open() via vexec(), yielding complete control of the host and all managed VPS instances.","state":0,"publishedAt":"2026-09-22T17:51:13.064+00:00","modifiedAt":"2026-10-01T19:19:20.683+00:00","affected":[{"ecosystem":"Vendor product","name":"Virtualizor","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"defaultStatus\": \"unaffected\",\n                    \"vendor\": \"Softaculous\",\n                    \"product\": \"Virtualizor\",\n                    \"versions\": [\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"0\",\n                            \"versionType\": \"custom\",\n                            \"lessThan\": \"3.2.9 (Patch 9)\"\n                        },\n                        {\n                            \"status\": \"unaffected\",\n                            \"version\": \"3.0.0\",\n                            \"versionType\": \"semver\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","score":9.3,"severity":"CRITICAL"},{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","score":9.8,"severity":"CRITICAL"}],"references":["https://www.vulncheck.com/blog/virtualizor-billing-hook-unauthenticated-root-rce","https://www.virtualizor.com/blog/virtualizor-3-2-9-launched-release-candidate-patch-9/","https://www.virtualizor.com/blog/virtualizor-3-3-0/","https://www.vulncheck.com/advisories/softaculous-virtualizor-os-command-injection-via-billing-module-handler"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-43641","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-43641","identifiers":["CVE-2026-43641"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. 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