CVE-2026-10047

HighCVSS 7.8

Published: 02/06/2026(UTC)Updated: 22/07/2026(UTC)Translated: 25/07/2026(UTC)NVD NIST

Exploitation Probability (EPSS)

Low risk

0.12%

2th percentile - higher than 2% of all known CVEs

Summary

An out-of-bounds write vulnerability in the Bitdefender Napoca hypervisor real-mode hook handler allows writing past the RealModeMemory buffer into the hypervisor heap using guest-controlled SS:SP values.

Risk Assessment

Potential hypervisor compromise and arbitrary code execution in the virtualized environment. The product is end-of-life and unsupported.

Recommendation

The product is End-of-Life; migrate to a supported solution immediately.

Other vulnerabilities in Bitdefender Napoca

CVE-2026-10046High
An out-of-bounds write vulnerability in the Bitdefender Napoca hypervisor BIOS INT 0x15 / E820 handler allows a malicious guest to write up to 20 bytes past the RealModeMemory buffer into the hypervisor heap.

Original NVD description (English source)

The Bitdefender Napoca bare-metal hypervisor contains an out-of-bounds write vulnerability in the real-mode hook handler, implemented in napoca/kernel/handler.c. The handler uses a guest-controlled SS:SP-derived offset as an index into the 1MB RealModeMemory buffer without bounds validation. With SS=0xFFFF and ESP=0xFFFF, the computed offset can reach 0x10FFEF, exceeding the RealModeMemory buffer by 65,519 bytes. The IRET frame push can therefore write past the end of the buffer into the hypervisor heap. The product is end-of-life and unsupported when assigned.