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Vulnerability record · CVE-2021-4468 · published 14 November 2025

CVE-2021-4468: Missing authentication for critical function vulnerability

PLANEX CS-QP50F-ING2 smart cameras expose a configuration backup interface over HTTP that does not require authentication. A remote, unauthenticated attacker can directly retrieve a compressed configuration backup file from the device. The backup contains sensitive configuration information, including credentials, allowing an attacker to obtain administrative access to the camera and compromise the confidentiality of the monitored environment.

8.7 CVSS 4.0 High EPSS 0.65% · top 50.8% CWE-306 · Missing authentication for critical function Deferred
8.7CVSS 4.0 base score
0.65%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
4References
17 Jun 2026Last modified by NVD

Description

PLANEX CS-QP50F-ING2 smart cameras expose a configuration backup interface over HTTP that does not require authentication. A remote, unauthenticated attacker can directly retrieve a compressed configuration backup file from the device. The backup contains sensitive configuration information, including credentials, allowing an attacker to obtain administrative access to the camera and compromise the confidentiality of the monitored environment.

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

References

LinkTags
https://cxsecurity.com/issue/WLB-2021010050
https://packetstorm.news/files/id/160805/
https://www.planex.co.jp/products/cs-qp50f/
https://www.vulncheck.com/advisories/planex-cs-qp50f-ing2-smart-camera-remote-configuration-disclosure

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Source: NIST National Vulnerability Database (record CVE-2021-4468), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.