cvedb.io
CVE-2021-44078
HIGH · CVSS 8.1
EPSS exploitation probability: 0%
Published 2021-12-26T05:15:07.270 · Last modified 2026-06-17T04:11:52.607

Summary

An issue was discovered in split_region in uc.c in Unicorn Engine before 2.0.0-rc5. It allows local attackers to escape the sandbox. An attacker must first obtain the ability to execute crafted code in the target sandbox in order to exploit this vulnerability. The specific flaw exists within the virtual memory manager. The issue results from the faulty comparison of GVA and GPA while calling uc_mem_map_ptr to free part of a claimed memory block. An attacker can leverage this vulnerability to escape the sandbox and execute arbitrary code on the host machine.

Affected products

unicorn-engine — unicorn_engine

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.