CVE Explorer
CVE-2026-10046
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=0xE
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0
Affected products and versions
1 source assertion{"defaultStatus":"affected","product":"Napoca bare-metal hypervisor","repo":"https://github.com/bitdefender/napoca","vendor":"Bitdefender","versions":[{"status":"affected","version":"all"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:6fc4dc4adf3f5473ec2bffba4da93bda77baa5fd9e6b9e14617778a94fe1032a · sha256:ec37bb99f6ed454c… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"LOCAL","baseScore":8.5,"baseSeverity":"HIGH","exploitMaturity":"NOT_DEFINED","privilegesRequired":"LOW","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","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","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentialityImpact":"HIG…
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:6fc4dc4adf3f5473ec2bffba4da93bda77baa5fd9e6b9e14617778a94fe1032a · sha256:ec37bb99f6ed454c… · /containers/cna/metrics/0/cvssV4_0
CWE assertions
1 source assertion{"cweId":"CWE-787","description":"CWE-787: Out-of-bounds Write","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:6fc4dc4adf3f5473ec2bffba4da93bda77baa5fd9e6b9e14617778a94fe1032a · sha256:ec37bb99f6ed454c… · /containers/cna/problemTypes/0/descriptions/0
Source references
1 source assertion{"url":"https://www.bitdefender.com/consumer/support/security-advisories/out-of-bounds-write-in-napoca-bios-int-0x15-e820-memory-map-handler-va-13905"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:6fc4dc4adf3f5473ec2bffba4da93bda77baa5fd9e6b9e14617778a94fe1032a · sha256:ec37bb99f6ed454c… · /containers/cna/references/0
Attribution and limitations
- CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →
Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.