CVE-2018-20455: Radare RADARE2

Medium severity, CVSS 5.5. EPSS: 1.1% chance of exploitation in the next 30 days.

In radare2 prior to 3.1.1, the parseOperand function inside libr/asm/p/asm_x86_nz.c may allow attackers to cause a denial of service (application crash via a stack-based buffer overflow) by crafting an input file, a related issue to CVE-2018-20456.

Affected products

• Radare RADARE2: before 3.1.1 (fixed in 3.1.1)

Published 2018-12-25. Last modified 2026-06-17.