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High severity7.5NVD Advisory· Published Feb 24, 2022· Updated Jun 17, 2026

CVE-2021-4021

CVE-2021-4021

Description

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

3
  • Radare/Radare23 versions
    cpe:2.3:a:radare:radare2:*:*:*:*:*:*:*:*+ 2 more
    • cpe:2.3:a:radare:radare2:*:*:*:*:*:*:*:*range: <=5.5.0
    • (no CPE)range: <5.6.2, <5.6.0, <5.5.4, <5.5.2
    • (no CPE)

Patches

Vulnerability mechanics

References

1

News mentions

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