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        "cveId": "CVE-2026-10046",
        "assignerOrgId": "b3d5ebe7-963e-41fb-98e1-2edaeabb8f82",
        "state": "PUBLISHED",
        "assignerShortName": "Bitdefender",
        "dateReserved": "2026-05-28T22:57:29.491Z",
        "datePublished": "2026-06-02T14:16:21.927Z",
        "dateUpdated": "2026-06-02T16:06:21.781Z"
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            "title": "Out-of-bounds write in Napoca BIOS INT 0x15 E820 memory map handler (VA-13905)",
            "datePublic": "2026-05-29T06:02:00.000Z",
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                            "lang": "en",
                            "cweId": "CWE-787",
                            "description": "CWE-787: Out-of-bounds Write",
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                            "lang": "en",
                            "value": "Overflow Buffers"
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                    "vendor": "Bitdefender",
                    "product": "Napoca bare-metal hypervisor",
                    "repo": "https://github.com/bitdefender/napoca",
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                    "value": "Bitdefender Napoca bare-metal hypervisor contains an out-of-bounds write vulnerability in the BIOS INT 0x15 / E820 memory map handler, implemented in napoca/guests/bios_handlers.c. The handler computes a destination offset into the guest RealModeMemory buffer from guest-controlled ES and EDI register values without validating that the resulting address remains within the 1MB RealModeMemory allocation. A malicious guest operating in real mode can trigger the issue by invoking INT 0x15 with AX=0xE820, EDX=0x534D4150, ECX greater than or equal to 20, EBX=0, ES=0xFFFF, and EDI=0xFFFF. This can cause a write of up to 20 bytes past the end of the RealModeMemory buffer into the hypervisor heap. The product is end-of-life and unsupported when assigned.",
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            "references": [
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                    "url": "https://www.bitdefender.com/consumer/support/security-advisories/out-of-bounds-write-in-napoca-bios-int-0x15-e820-memory-map-handler-va-13905"
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                        "attackComplexity": "LOW",
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                        "userInteraction": "NONE",
                        "vulnConfidentialityImpact": "HIGH",
                        "subConfidentialityImpact": "NONE",
                        "vulnIntegrityImpact": "HIGH",
                        "subIntegrityImpact": "NONE",
                        "vulnAvailabilityImpact": "HIGH",
                        "subAvailabilityImpact": "NONE",
                        "exploitMaturity": "NOT_DEFINED",
                        "Safety": "NOT_DEFINED",
                        "Automatable": "NOT_DEFINED",
                        "Recovery": "NOT_DEFINED",
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                    "lang": "en",
                    "value": "Sebastián Alba Vives (@Sebasteuo / 0xS4bb1)",
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