CVE-2026-28529

{"id": "CVE-2026-28529", "cveTags": [], "metrics": {"cvssMetricV40": [{"type": "Secondary", "source": "disclosure@vulncheck.com", "cvssData": {"Safety": "NOT_DEFINED", "version": "4.0", "Recovery": "NOT_DEFINED", "baseScore": 8.5, "Automatable": "NOT_DEFINED", "attackVector": "LOCAL", "baseSeverity": "HIGH", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/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": "LOW", "subIntegrityImpact": "NONE", "vulnIntegrityImpact": "HIGH", "integrityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "vulnAvailabilityImpact": "HIGH", "availabilityRequirement": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "subConfidentialityImpact": "NONE", "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": "2026-03-25T14:16:33.690", "references": [{"url": "https://gist.github.com/n4sm/0fd2479e0c23e0fa2f192cd8fda45750", "source": "disclosure@vulncheck.com"}, {"url": "https://github.com/cryptodev-linux/cryptodev-linux/pull/104", "source": "disclosure@vulncheck.com"}, {"url": "https://nasm.re/posts/cryptodev-linux-vuln/", "source": "disclosure@vulncheck.com"}, {"url": "https://www.vulncheck.com/advisories/cryptodev-linux-get-userbuf-use-after-free-lpe", "source": "disclosure@vulncheck.com"}], "vulnStatus": "Awaiting Analysis", "weaknesses": [{"type": "Primary", "source": "disclosure@vulncheck.com", "description": [{"lang": "en", "value": "CWE-416"}]}], "descriptions": [{"lang": "en", "value": "cryptodev-linux version 1.14 and prior contain a page reference handling flaw in the get_userbuf function of the /dev/crypto device driver that allows local users to trigger use-after-free conditions. Attackers with access to the /dev/crypto interface can repeatedly decrement reference counts of controlled pages to achieve local privilege escalation."}, {"lang": "es", "value": "cryptodev-linux versi\u00f3n 1.14 y anteriores contienen una falla en el manejo de referencias de p\u00e1gina en la funci\u00f3n get_userbuf del controlador de dispositivo /dev/crypto que permite a usuarios locales activar condiciones de uso despu\u00e9s de liberaci\u00f3n. Atacantes con acceso a la interfaz /dev/crypto pueden decrementar repetidamente los conteos de referencia de p\u00e1ginas controladas para lograr escalada de privilegios local."}], "lastModified": "2026-03-25T15:41:33.977", "sourceIdentifier": "disclosure@vulncheck.com"}