CVE-2021-4468

CVE-2021-4468 is a high-severity vulnerability with a CVSS 4.0 base score of 8.7. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-306.

Key facts

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.

Frequently asked questions

What is CVE-2021-4468?
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.
How severe is CVE-2021-4468?
CVE-2021-4468 has a CVSS 4.0 base score of 8.7, rated high severity.
Is CVE-2021-4468 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (45th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2021-4468?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2021-4468 have an EU (EUVD) identifier?
Yes. CVE-2021-4468 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2021-34718.
When was CVE-2021-4468 published?
CVE-2021-4468 was published on 2025-11-14 and last updated on 2026-06-17.

References

Other CWE-306 (Missing Authentication for Critical Function) vulnerabilities

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