CVE-2021-20043
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I. Basic Information for CVE-2021-20043
Vulnerability Information
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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Description
A Heap-based buffer overflow vulnerability in SonicWall SMA100 getBookmarks method allows a remote authenticated attacker to potentially execute code as the nobody user in the appliance. This vulnerability affected SMA 200, 210, 400, 410 and 500v appliances.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
堆缓冲区溢出
Source: NVD (National Vulnerability Database)
Vulnerability Title
Sonicwall SMA100 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Sonicwall SMA100是美国Sonicwall公司的一款安全访问网关设备。 SonicWall SMA100 getBookmarks 方法中存在安全漏洞，该漏洞允许远程验证攻击者以设备中的 nobody 用户身份执行代码。此漏洞影响了 SMA 200、210、400、410 和 500v 设备。
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 |
|---|---|---|---|---|
| SonicWall | SonicWall SMA100 | 10.2.0.8-37sv and earlier | - |
II. Public POCs for CVE-2021-20043
| # | POC Description | Source Link | Shenlong Link |
|---|
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- https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0026x_refsource_CONFIRM
- https://nvd.nist.gov/vuln/detail/CVE-2021-20043
Same Patch Batch · SonicWall · 2021-12-08 · 9 CVEs total
| CVE-2021-20047 | SonicWall Global VPN client 代码问题漏洞 | |
| CVE-2021-20045 | SonicWall SMA100 安全漏洞 | |
| CVE-2021-20044 | Sonicwall SMA100 操作系统命令注入漏洞 | |
| CVE-2021-20042 | SonicWall SMA100 安全漏洞 | |
| CVE-2021-20041 | SonicWall SMA100安全漏洞 | |
| CVE-2021-20040 | Sonicwall SMA100 路径遍历漏洞 | |
| CVE-2021-20039 | Sonicwall SMA100 操作系统操作系统命令注入漏洞 | |
| CVE-2021-20038 | Sonicwall SMA100 缓冲区错误漏洞 |
IV. Related Vulnerabilities
Same weakness: CWE-122
- CVE-2026-8261
Squirrel sqobject.cpp Load heap-based overflow - CVE-2026-8213
OSGeo gdal Grid File GDapi.c GDSDfldsrch heap-based overflow - CVE-2026-8212
OSGeo gdal SWapi.c SWSDfldsrch heap-based overflow - CVE-2026-42309
Pillow: Heap buffer overflow with nested list coordinates - CVE-2026-45130
Vim: Heap Buffer Overflow in spell file loading
V. Comments for CVE-2021-20043
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