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CVE-2017-7921

Quick assessment

Affected

n/a Hikvision Cameras

Exploitation

Confirmed exploitation in the wild; remediate immediately

Recommended action

Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Hikvision DS-2CD2xx2F-I Series等都是中国海康威视（Hikvision）公司的网络摄像头产品。多款Hikvision产品中存在身份验证漏洞。攻击者可利用该漏洞提升权限，获取敏感信息的访问权限。以下产品和版本受到影响：Hikvision DS-2CD2xx2F-I Series 5.2.0 build 140721版本至5.4.0 build 160530版本；DS-2CD2xx0F-I Series 5.2.0 build 140721版本至5.4.0 Build 16040

AI Predicted 8.1 Difficulty: Easy KEV EPSS 100.00% · P100 Updated Mar 06, 2026

Public Exploits 3

Metasploit · 2 hikvision_unauth_pwd_reset_cve_2017_7921.rb [auxiliary] hikvision_info_disclosure_cve_2017_7921.rb [auxiliary]

Nuclei · 1 CVE-2017-7921.yaml [template]

In-the-Wild Activity Observed cisa_kev · confirmed

Possible ATT&CK Techniques 1 AI

T1133 · External Remote Services

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I. Basic Information for CVE-2017-7921

Vulnerability Information

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Vulnerability Title

N/A

Source: CVE Program / CVE List V5

Vulnerability Description

An Improper Authentication issue was discovered in Hikvision DS-2CD2xx2F-I Series V5.2.0 build 140721 to V5.4.0 build 160530, DS-2CD2xx0F-I Series V5.2.0 build 140721 to V5.4.0 Build 160401, DS-2CD2xx2FWD Series V5.3.1 build 150410 to V5.4.4 Build 161125, DS-2CD4x2xFWD Series V5.2.0 build 140721 to V5.4.0 Build 160414, DS-2CD4xx5 Series V5.2.0 build 140721 to V5.4.0 Build 160421, DS-2DFx Series V5.2.0 build 140805 to V5.4.5 Build 160928, and DS-2CD63xx Series V5.0.9 build 140305 to V5.3.5 Build 160106 devices. The improper authentication vulnerability occurs when an application does not adequately or correctly authenticate users. This may allow a malicious user to escalate his or her privileges on the system and gain access to sensitive information.

Source: CVE Program / CVE List V5

CVSS Information

N/A

Source: CVE Program / CVE List V5

Vulnerability Type

认证机制不恰当

Source: CVE Program / CVE List V5

Vulnerability Title

多款Hikvision产品安全漏洞

Source: CNNVD (China National Vulnerability Database)

Vulnerability Description

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)

Shenlong Deep Dive — AI Deep Analysis

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Affected Products

Vendor	Product	Affected Versions	CPE	Subscribe
-	Hikvision Cameras	Hikvision Cameras	-

II. Public POCs for CVE-2017-7921

#	POC Description	Source Link	Shenlong Link
1	Hikvision camera CVE-2017-7921-EXP	https://github.com/JrDw0/CVE-2017-7921-EXP	POC Details
2	海康威视未授权访问检测poc及口令爆破	https://github.com/BurnyMcDull/CVE-2017-7921	POC Details
3	Hikvision IP camera access bypass exploit, developed by golang.	https://github.com/MisakaMikato/cve-2017-7921-golang	POC Details
4	This python file will decrypt the configurationFile used by hikvision cameras vulnerable to CVE-2017-7921.	https://github.com/chrisjd20/hikvision_CVE-2017-7921_auth_bypass_config_decryptor	POC Details
5	None	https://github.com/p4tq/hikvision_CVE-2017-7921_auth_bypass_config_decryptor	POC Details
6	CVE-2017-7921-EXP Hikvision camera	https://github.com/201646613/CVE-2017-7921	POC Details
7	None	https://github.com/inj3ction/CVE-2017-7921-EXP	POC Details
8	CVE-2017-7921 EXPLOIT	https://github.com/krypton612/hikivision	POC Details
9	A PoC exploit for CVE-2017-7921 - Hikvision Camera Series Improper Authentication Vulnerability.	https://github.com/K3ysTr0K3R/CVE-2017-7921-EXPLOIT	POC Details
10	CVE-2017-7921 exploit. Allows admin password retrieval and automatic snapshot download.	https://github.com/fracergu/CVE-2017-7921	POC Details
11	Python script get image from Hikvision camera with CVE-2017-7921 vulnerability	https://github.com/AnonkiGroup/AnonHik	POC Details
12	None	https://github.com/b3pwn3d/CVE-2017-7921	POC Details
13	None	https://github.com/yousouf-Tasfin/cve-2017-7921-Mass-Exploit	POC Details
14	Test For CVE-2017–7921;	https://github.com/kooroshsanaei/HikVision-CVE-2017-7921	POC Details
15	Identify hikvision ip and probe for cve-s (CVE-2017-7921, CVE-2022-28171, CVE-2021-36260)	https://github.com/aengussong/hikvision_probe	POC Details
16	CVE-2017-7921复现解密文件分享免费下载	https://github.com/andychao/CVE-2017-7921_reproduces_decrypted_file_sharing	POC Details
17	Hikvision DS-2CD2xx2F-I Series V5.2.0 build 140721 to V5.4.0 build 160530, DS-2CD2xx0F-I Series V5.2.0 build 140721 to V5.4.0 Build 160401, DS-2CD2xx2FWD Series V5.3.1 build 150410 to V5.4.4 Build 161125, DS-2CD4x2xFWD Series V5.2.0 build 140721 to V5.4.0 Build 160414, DS-2CD4xx5 Series V5.2.0 build 140721 to V5.4.0 Build 160421, DS-2DFx Series V5.2.0 build 140805 to V5.4.5 Build 160928, and DS-2CD63xx Series V5.0.9 build 140305 to V5.3.5 Build 160106 devices contain an improper authentication issue. The improper authentication vulnerability occurs when an application does not adequately or correctly authenticate users. This may allow a malicious user to escalate his or her privileges on the system and gain access to sensitive information.	https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2017/CVE-2017-7921.yaml	POC Details
18	CVE-2017-7921 exploit. Allows admin password retrieval and automatic snapshot download.	https://github.com/GabrielAvls/CVE-2017-7921	POC Details
19	Проверка на уязвимость камер Hikvision - CVE-2017-7921	https://github.com/initon/Hikvision---CVE-2017-7921	POC Details
20	None	https://github.com/lastvocher/Hikvision-CVE-2017-7921-decryptor	POC Details
21	This tool is a modern evolution of older PoCs like those for CVE-2017-7921 and ICSA-17-124-01, updated for 2025 with live console output, threading for speed, and honeypot filtering (skips devices with >12 open ports). It's built for red teamers, bug bounty hunters, and security researchers to identify	https://github.com/voidsshadows/Hikvision-City-Hunter	POC Details
22	CVE-2017-7921 is a critical vulnerability (CVSS score: 9.8) affecting multiple Hikvision IP camera and DVR models, first disclosed in 2017. It stems from an improper authentication flaw that allows unauthenticated remote attackers to bypass login mechanisms and gain unauthorized access to sensitive system information	https://github.com/f3d0rq/CVE-2017-7921	POC Details
23	CVE-2017-7921 is a critical vulnerability (CVSS score: 9.8) affecting multiple Hikvision IP camera and DVR models, first disclosed in 2017. It stems from an improper authentication flaw that allows unauthenticated remote attackers to bypass login mechanisms and gain unauthorized access to sensitive system information	https://github.com/0xf3d0rq/CVE-2017-7921	POC Details
24	CVE-2017-7921, CVE-2021-36260 updated 21/01/2026	https://github.com/saaydmr/hikvision-exploiter	POC Details
25	用于借助FOFA快速测试海康威视的CVE-2017-7921漏洞，并且给出登陆账号和密码，并输出json文件。	https://github.com/Wyl-cmd/CVE-2017-7921-Research-Toolkit	POC Details
26	HikVision Auth Bypass CVE, tool is able to extract credentials, and take snapshots based on magic cookie or supplied credentials.	https://github.com/mverschu/CVE-2017-7921	POC Details
27	simple CVE-2017-7921 rewrite in python by me. for educational purposes only!	https://github.com/KelvinWin10/CVE-2017-7921-rewrite	POC Details

AI-Generated POC Premium

No public POC found.

III. Intelligence Information for CVE-2017-7921

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Vendor Advisories for CVE-2017-7921 (1)

http://www.securityfocus.com/bid/98313 vdb-entry x_refsource_BID

Other References for CVE-2017-7921 (3)

http://www.hikvision.com/us/about_10805.html x_refsource_MISC
https://ghostbin.com/paste/q2vq2 x_refsource_MISC
https://ics-cert.us-cert.gov/advisories/ICSA-17-124-01 x_refsource_MISC

https://www.cve.org/CVERecord?id=CVE-2017-7921

Same Patch Batch · n/a · 2017-05-06 · 11 CVEs total

CVE-2017-6024		多款Rockwell Automation产品安全漏洞
CVE-2017-6029		Certec EDV GmbH atvise scada 跨站脚本漏洞
CVE-2017-6031		Certec EDV GmbH atvise scada 安全漏洞
CVE-2017-7909		Advantech B+B SmartWorx MESR901固件安全漏洞
CVE-2017-7911		CyberVision Kaa IoT Platform 代码注入漏洞
CVE-2017-7923		多款Hikvision产品安全漏洞
CVE-2017-7925		多款大华产品安全漏洞
CVE-2017-7927		多款大华产品安全漏洞
CVE-2017-7929		Advantech WebAccess 路径遍历漏洞
CVE-2017-8391		CA Client Automation OS Installation Management组件安全漏洞

IV. Related Vulnerabilities

Same product: Hikvision Cameras

CVE-2017-7923
多款Hikvision产品安全漏洞

Same vendor: n/a

Same weakness: CWE-287