CVE-2021-41380
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I. Basic Information for CVE-2021-41380
Vulnerability Information
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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Description
RealVNC Viewer 6.21.406 allows remote VNC servers to cause a denial of service (application crash) via crafted RFB protocol data. NOTE: It is asserted that this issue requires social engineering a user into connecting to a fake VNC Server. The VNC Viewer application they are using will then hang, until terminated, but no memory leak occurs - the resources are freed once the hung process is terminated and the resource usage is constant during the hang. Only the process that is connected to the fake Server is affected. This is an application bug, not a security issue
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Title
RealVNC Viewer 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
RealVnc Viewer是英国RealVnc公司的一个远程桌面软件。用于对所选择计算机的即时远程访问。 RealVNC Viewer 存在安全漏洞，该漏洞源于 RealVNC Viewer 6.21.406 版本允许远程 VNC 服务器通过精心设计的 RFB 协议数据导致拒绝服务（应用程序崩溃）。
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 |
|---|---|---|---|---|
| - | n/a | n/a | - |
II. Public POCs for CVE-2021-41380
| # | POC Description | Source Link | Shenlong Link |
|---|
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- https://gist.github.com/totaam/a90f2bb40f5b693ccec0ae903d021b03x_refsource_MISC
- https://nvd.nist.gov/vuln/detail/CVE-2021-41380
Same Patch Batch · n/a · 2021-09-17 · 19 CVEs total
| CVE-2021-23442 | 8.6 HIGH | Prototype Pollution |
| CVE-2021-41392 | Boost Note 注入漏洞 | |
| CVE-2021-41326 | MISP 命令注入漏洞 | |
| CVE-2021-41391 | Ericsson Ecm 跨站脚本漏洞 | |
| CVE-2021-41390 | Ericsson ECM 注入漏洞 | |
| CVE-2021-41387 | Seatd 代码问题漏洞 | |
| CVE-2020-21548 | libsixel 缓冲区错误漏洞 | |
| CVE-2020-21547 | libsixel 缓冲区错误漏洞 | |
| CVE-2021-41383 | Netgear NETGEAR R6020 命令注入漏洞 | |
| CVE-2020-12083 | Revenera FlexNet Code Insight 授权问题漏洞 | |
| CVE-2020-12082 | Revenera FlexNet Code Insight 跨站脚本漏洞 | |
| CVE-2020-12080 | Flexera Software FlexNet Publisher 输入验证错误漏洞 | |
| CVE-2021-40825 | AcuityBrands nLight ECLYPSE 安全漏洞 | |
| CVE-2021-38304 | Ni-Pal 输入验证错误漏洞 | |
| CVE-2019-9060 | CMS Made Simple 路径遍历漏洞 | |
| CVE-2021-41317 | XssHunter-Express 授权问题漏洞 | |
| CVE-2021-41315 | Device42 Remote Collector 操作系统命令注入漏洞 | |
| CVE-2021-41316 | Device42 参数注入漏洞 |
IV. Related Vulnerabilities
Same vendor: n/a
- CVE-2026-8276
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Open5GS SMF ogs_nas_parse_qos_rules denial of service - CVE-2026-8269
Open5GS SMF smf_nsmf_handle_create_sm_context denial of serv - CVE-2026-8268
Open5GS SMF OpenAPI_list_create denial of service
V. Comments for CVE-2021-41380
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