CVE-2021-20042
Get alerts for future matching vulnerabilitiesLog in to subscribe
I. Basic Information for CVE-2021-20042
Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗ Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.
Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Description
An unauthenticated remote attacker can use SMA 100 as an unintended proxy or intermediary undetectable proxy to bypass firewall rules. 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
未有动机的代理或中间人(混淆代理)
Source: NVD (National Vulnerability Database)
Vulnerability Title
SonicWall SMA100 安全漏洞
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 存在安全漏洞，未经身份验证的远程攻击者可以使用 SMA100 作为意外代理或中间无法检测的代理来绕过防火墙规则。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 | 9.0.0.11-31sv and earlier | - |
II. Public POCs for CVE-2021-20042
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POCPremium
No public POC found.
Login to generate AI POCIII. Intelligence Information for CVE-2021-20042
请登录查看更多情报信息。
- https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0026x_refsource_CONFIRM
- https://nvd.nist.gov/vuln/detail/CVE-2021-20042
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-2021-20043 | Sonicwall SMA100 缓冲区错误漏洞 | |
| 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-441
- CVE-2026-45182
GrapheneOS 20260504前IP泄露漏洞 - CVE-2026-41365
OpenClaw < 2026.3.31 - Sender Allowlist Bypass via Graph API - CVE-2026-6993
go-kratos http.DefaultServeMux Fallback server.go NewServer - CVE-2026-39906
Unisys WebPerfect Image Suite 3.0 NTLMv2 Hash Leakage via .N - CVE-2025-62718
Axios has a NO_PROXY Hostname Normalization Bypass that Lead
V. Comments for CVE-2021-20042
No comments yet