CVE-2021-4021

A vulnerability was found in Radare2 in versions prior to 5.6.2, 5.6.0, 5.5.4 and 5.5.2. Mapping a huge section filled with zeros of an ELF64 binary for MIPS architecture can lead to uncontrolled resource consumption and DoS.

• CWE-400
• CWE-834

• https://github.com/radareorg/radare2/issues/19436Exploit, Issue Tracking, Third Party Advisory
• https://github.com/radareorg/radare2/issues/19436Exploit, Issue Tracking, Third Party Advisory

Published

Feb 24, 2022

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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