CVE-2017-7921criticalunder attackCWE-287

CVE-2017-7921: critical vulnerability in Hikvision Cameras

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100Vexday Risk Score

Patch now. It under exploitation confirmed by CISA and has a working public exploit.

ssvc Actcvss 9.8epss 100%
from disclosure to weapon1087 days
Published on NVDMay 6
1st PoC+1087d
metasploit+140d
CISA KEV+3225d
Action required by CISAfederal deadline: 2026-03-26

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

In short

Hikvision security cameras from 2014-2016 have a flaw that allows attackers to bypass authentication and gain unauthorized access to the device, potentially viewing sensitive information or taking control of the camera.

Technical detail

An improper authentication vulnerability in multiple Hikvision IP camera series (DS-2CD2xx2F-I, DS-2CD2xx0F-I, DS-2CD2xx2FWD, DS-2CD4x2xFWD, DS-2CD4xx5, DS-2DFx, and DS-2CD63xx) across firmware versions 5.2.0 to 5.4.5 permits attackers to bypass authentication mechanisms without valid credentials. This enables privilege escalation and unauthorized access to device functions and recorded video data.

Summary generated and translated by AI from the official description.

The full analysis of this CVE is available in Portuguese →

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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected products
n/a · Hikvision Cameras
public PoCs found — 53
githubgithub.com/chrisjd20/hikvision_CVE-2017-7921_auth_bypass_config_decryptor★ 116githubgithub.com/JrDw0/CVE-2017-7921-EXP★ 102githubgithub.com/K3ysTr0K3R/CVE-2017-7921-EXPLOIT★ 46githubgithub.com/BurnyMcDull/CVE-2017-7921★ 36githubgithub.com/voidsshadows/Hikvision-City-Hunter★ 19githubgithub.com/MisakaMikato/cve-2017-7921-golang★ 12githubgithub.com/201646613/CVE-2017-7921★ 6githubgithub.com/kooroshsanaei/HikVision-CVE-2017-7921★ 6githubgithub.com/Wyl-cmd/CVE-2017-7921-Research-Toolkit★ 5githubgithub.com/aengussong/hikvision_probe★ 3githubgithub.com/krypton612/hikivision★ 2githubgithub.com/KelvinWin10/CVE-2017-7921-rewrite★ 1githubgithub.com/saaydmr/hikvision-exploiter★ 1githubgithub.com/0xf3d0rq/CVE-2017-7921★ 1githubgithub.com/inj3ction/CVE-2017-7921-EXP★ 0githubgithub.com/p4tq/hikvision_CVE-2017-7921_auth_bypass_config_decryptor★ 0githubgithub.com/AnonkiGroup/AnonHik★ 0githubgithub.com/b3pwn3d/CVE-2017-7921★ 0githubgithub.com/GabrielAvls/CVE-2017-7921★ 0githubgithub.com/lastvocher/Hikvision-CVE-2017-7921-decryptor★ 0githubgithub.com/mverschu/CVE-2017-7921★ 0vulncheckvulncheck.com/xdb/c81107631dddunverifiedvulncheckvulncheck.com/xdb/0053c8347551unverifiedvulncheckvulncheck.com/xdb/a916dbfd7e71unverifiedvulncheckvulncheck.com/xdb/329a3cf59e4aunverifiedvulncheckvulncheck.com/xdb/e07fd3559fccunverifiedvulncheckvulncheck.com/xdb/070707da105bunverifiedvulncheckvulncheck.com/xdb/36583e0cb34funverifiedvulncheckvulncheck.com/xdb/2ae43fbea053unverifiedvulncheckvulncheck.com/xdb/26aff008accaunverifiedvulncheckvulncheck.com/xdb/eec829707014unverifiedvulncheckvulncheck.com/xdb/32a34f6533d8unverifiedvulncheckvulncheck.com/xdb/6d33c53d16c9unverifiedvulncheckvulncheck.com/xdb/bfc9c8fef307unverifiedvulncheckvulncheck.com/xdb/87f825631bf7unverifiedvulncheckvulncheck.com/xdb/4cd7c6e28839unverifiedvulncheckvulncheck.com/xdb/891f8c5baa5cunverifiedvulncheckvulncheck.com/xdb/6f4dd8bf1b5aunverifiedvulncheckvulncheck.com/xdb/0bf7b1d4ce0eunverifiedvulncheckvulncheck.com/xdb/af9ec4e77da5unverifiedvulncheckvulncheck.com/xdb/d54d5776a319unverifiedvulncheckvulncheck.com/xdb/c3185223e959unverifiedvulncheckvulncheck.com/xdb/d68843daf860unverifiedvulncheckvulncheck.com/xdb/d79e9541cde2unverifiedvulncheckvulncheck.com/xdb/c0c4085f9bfcunverifiedvulncheckvulncheck.com/xdb/3d1112f04ef6unverifiedvulncheckvulncheck.com/xdb/3ba708cf75e3unverifiedvulncheckvulncheck.com/xdb/fa74de3a21d2unverifiedvulncheckvulncheck.com/xdb/ef959f6bd8eaunverifiedvulncheckvulncheck.com/xdb/b44e7fbc0ce1unverifiedvulncheckvulncheck.com/xdb/0f35ff80fe69unverifiedvulncheckvulncheck.com/xdb/bb9f0ce3ce8dunverifiedvulncheckvulncheck.com/xdb/36a31ca48ed8unverified
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