Unicorn Engine v2.0.0-rc7 and below was discovered to contain a NULL pointer dereference via qemu_ram_free.
https://github.com/unicorn-engine/unicorn/pull/1593/commits/6a879a082d4d67a5d13f1233ae0334cde0a7f844
https://github.com/unicorn-engine/unicorn/pull/1593/commits/31389e59457f304be3809f9679f91a42daa7ebaa
https://github.com/unicorn-engine/unicorn/commit/3d3deac5e6d38602b689c4fef5dac004f07a2e63
https://violentbinary.github.io/posts/2-simple-analysis-of-software-virtualization-of-memory-in-unicorn-engine/
https://github.com/unicorn-engine/unicorn/issues/1588
Source: Mitre, NVD
Published: 2022-06-02
Updated: 2026-06-17
Base Score: 5
Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P
Severity: Medium
Base Score: 7.5
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Severity: High
EPSS: 0.00512