CVE-2021-3466
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I. Basic Information for CVE-2021-3466
Vulnerability Information
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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Description
A flaw was found in libmicrohttpd. A missing bounds check in the post_process_urlencoded function leads to a buffer overflow, allowing a remote attacker to write arbitrary data in an application that uses libmicrohttpd. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability. Only version 0.9.70 is vulnerable.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
未进行输入大小检查的缓冲区拷贝(传统缓冲区溢出)
Source: NVD (National Vulnerability Database)
Vulnerability Title
libmicrohttpd 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
GNU libmicrohttpd是GNU开源的一个应用程序。将HTTP服务器作为另一个应用程序的一部分来运行。 GNU libmicrohttpd存在缓冲区错误漏洞，该漏洞源于缺失边界检查将导致缓冲区溢出，攻击者可利用该漏洞在使用libmicrohttpd的应用程序中写入任意数据。
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 |
|---|---|---|---|---|
| - | libmicrohttpd | libmicrohttpd 0.9.70 | - |
II. Public POCs for CVE-2021-3466
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POCPremium
No public POC found.
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- https://bugzilla.redhat.com/show_bug.cgi?id=1939127x_refsource_MISC
- https://security.gentoo.org/glsa/202311-08vendor-advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4334XJNDJPYQNFE6S3S2KUJJ7TMHYCWL/vendor-advisoryx_refsource_FEDORA
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/75HDMREKITMGPGE62NP7KE62ZJVLETXN/vendor-advisoryx_refsource_FEDORA
- https://nvd.nist.gov/vuln/detail/CVE-2021-3466
Same Patch Batch · n/a · 2021-03-25 · 43 CVEs total
| CVE-2021-3446 | Arch Linux libtpms 安全特征问题漏洞 | |
| CVE-2021-20215 | Privoxy 安全漏洞 | |
| CVE-2021-27194 | Netop Vision 安全漏洞 | |
| CVE-2021-27195 | Netop Vision 安全漏洞 | |
| CVE-2021-27193 | Netop Vision 访问控制错误漏洞 | |
| CVE-2021-22659 | Rockwell Automation MicroLogix 1400 安全漏洞 | |
| CVE-2021-22496 | Micro Focus Access Manager Appliance 授权问题漏洞 | |
| CVE-2021-29156 | Forgerock ForgeRock OpenAM 注入漏洞 | |
| CVE-2021-26715 | Michael Stepankin OpenID-Connect-Java-Spring-Server 代码问题漏洞 | |
| CVE-2021-21783 | Genivia gSOAP 输入验证错误漏洞 | |
| CVE-2021-3443 | JasPer 代码问题漏洞 | |
| CVE-2021-3467 | JasPer 代码问题漏洞 | |
| CVE-2021-26597 | NOKIA NetAct 18A 代码问题漏洞 | |
| CVE-2021-26596 | NOKIA NetAct 18A 跨站脚本漏洞 | |
| CVE-2020-35502 | Privoxy 安全漏洞 | |
| CVE-2021-20210 | Privoxy 安全漏洞 | |
| CVE-2021-20211 | Privoxy 安全漏洞 | |
| CVE-2021-20212 | Privoxy 安全漏洞 | |
| CVE-2021-20213 | Privoxy 代码问题漏洞 | |
| CVE-2021-20214 | Privoxy 安全漏洞 |
Showing top 20 of 43 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same vendor: n/a
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Same weakness: CWE-120
- CVE-2026-8260
D-Link DCS-935L HNAP Service hnap_service SetDeviceSettings - CVE-2026-8137
Totolink X5000R formDdns sub_458E40 buffer overflow - CVE-2026-6691
MongoDB C Driver Cyrus SASL Canonicalization Buffer Overflow - CVE-2026-7857
D-Link DI-8100 CGI user_group.asp sprintf buffer overflow - CVE-2026-7856
D-Link DI-8100 Web Management url_member.asp buffer overflow
V. Comments for CVE-2021-3466
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