Cyber Resilience

CVE-2021-47727

HighPublic PoC

Published: 09 December 2025

Published
09 December 2025
Modified
23 February 2026
KEV Added
Patch
CVSS Score v4 8.7 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:X/V:X/RE:X/U:X
EPSS Score 0.0015 35.3th percentile
Risk Priority 17 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2021-47727 is a high-severity Missing Authentication for Critical Function (CWE-306) vulnerability in Selea Carplateserver. Its CVSS base score is 8.7 (High).

Operationally, ranked at the 35.3th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

EU & UK References

Vulnerability details

Selea Targa IP OCR-ANPR Camera contains an unauthenticated vulnerability that allows remote attackers to access live video streams without authentication. Attackers can directly connect to RTP/RTSP or M-JPEG streams by requesting specific endpoints like p1.mjpg or p1.264 to view camera…

more

footage.

CWE(s)

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

selea
izero box full firmware
all versions
selea
izero column entry\/8 firmware
all versions
selea
izero column full\/8 firmware
all versions
selea
targa 504 firmware
all versions
selea
targa 512 firmware
all versions
selea
targa 704 ilb firmware
all versions
selea
targa 704 tkm firmware
all versions
selea
targa 710 inox firmware
all versions
selea
targa 750 firmware
all versions
selea
targa 805 firmware
all versions
+2 more product configuration(s) — see NVD for full list

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

addresses: CWE-306

Requires established identification and authentication to unlock, mitigating missing authentication for continued system access.

addresses: CWE-306

Requiring identification and rationale for actions allowed without authentication ensures critical functions are not left unprotected by forcing review of authentication requirements.

addresses: CWE-306

Authorizing mobile device connections to organizational systems ensures authentication is performed for this critical access function.

addresses: CWE-306

Guarantees critical functions are protected by mandatory invocation of the access control mechanism.

addresses: CWE-306

Auditing sessions makes it possible to detect access to critical functions without required authentication.

addresses: CWE-306

The assessment process confirms authentication is present and effective for critical functions, preventing exploitation from missing authentication.

addresses: CWE-306

Certification assesses that critical functions have required authentication controls in place.

addresses: CWE-306

Disabling non-essential functions and services eliminates the need to secure them, reducing exposure from missing authentication on unnecessary components.

References