CVE-2021-4021
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I. Basic Information for CVE-2021-4021
Vulnerability Information
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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability 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.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
未加控制的资源消耗(资源穷尽)
Source: NVD (National Vulnerability Database)
Vulnerability Title
radare2 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
radare2是一套用于处理二进制文件的库和工具。 radare2 存在资源管理错误漏洞，攻击者可利用该漏洞通过MIPS ELF64二进制文件触发Radare2的过载，以触发拒绝服务。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| - | radare2 | radare2 5.6.2, radare2 5.6.0, radare2 5.5.4 and radare2 5.5.2 | - |
II. Public POCs for CVE-2021-4021
| # | POC Description | Source Link | Shenlong Link |
|---|
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- https://github.com/radareorg/radare2/issues/19436x_refsource_MISC
- https://nvd.nist.gov/vuln/detail/CVE-2021-4021
Same Patch Batch · n/a · 2022-02-24 · 41 CVEs total
| CVE-2021-44663 | Xerte 安全漏洞 | |
| CVE-2022-25004 | Sourcecodester Hospital Patient Records Management System SQL注入漏洞 | |
| CVE-2022-23135 | Zte Zxhn F677 路径遍历漏洞 | |
| CVE-2022-0544 | Blender 数字错误漏洞 | |
| CVE-2022-0545 | Blender输入验证错误漏洞 | |
| CVE-2022-0546 | Blender 输入验证错误漏洞 | |
| CVE-2021-3700 | usbredirparser 资源管理错误漏洞 | |
| CVE-2021-3607 | QEMU 输入验证错误漏洞 | |
| CVE-2021-3608 | QEMU 缓冲区错误漏洞 | |
| CVE-2021-44662 | Xerte 跨站脚本漏洞 | |
| CVE-2022-25003 | Sourcecodester Hospital Patient Records Management System SQL注入漏洞 | |
| CVE-2021-44664 | Xerte 代码问题漏洞 | |
| CVE-2021-44665 | Xerte 路径遍历漏洞 | |
| CVE-2021-43745 | Trilium Notes 安全漏洞 | |
| CVE-2021-29216 | HPE OneView Global Dashboard 跨站脚本漏洞 | |
| CVE-2021-29217 | HPE OneView Global Dashboard 输入验证错误漏洞 | |
| CVE-2022-23701 | HPE Integrated Lights-Out 4 注入漏洞 | |
| CVE-2021-29220 | HPE iLO Amplifier Pack 安全漏洞 | |
| CVE-2021-39364 | Honeywell HDZP252DI 1.00.HW02.4 安全漏洞 | |
| CVE-2021-39363 | Honeywell HDZP252DI 1.00.HW02.4和HBW2PER1 1.00. hw01.3 命令注入漏洞 |
Showing top 20 of 41 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: radare2
- CVE-2026-6942
radare2-mcp <=1.6.0 OS Command Injection via Shell Metachara - CVE-2026-6941
radare2 < 6.1.4 Project Notes Path Traversal via Symlink - CVE-2026-6940
radare2 < 6.1.4 Project Deletion Path Traversal Directory De - CVE-2026-40517
radare2 < 6.1.4 Command Injection via PDB Parser Symbol Name - CVE-2026-40527
radare2 Command Injection via DWARF Parameter Names
Same weakness: CWE-400
- CVE-2025-10470
Denial-of-Service via Magic Link Authentication in WSO2 Iden - CVE-2026-8187
Open5GS UPF gtp-path.c _gtpv1_u_recv_cb resource consumption - CVE-2026-42343
FastGPT: Uncontrolled Resource Consumption leading to Sandbo - CVE-2026-42212
SolidCAM-GPPL-IDE: XML External Entity (XXE) and billion-lau - CVE-2026-32686
Unbounded exponent in decimal enables unauthenticated DoS
V. Comments for CVE-2021-4021
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