CVE-2021-30167

Name: CVE-2021-30167
Creator: NVD / NIST
Published: 2021-04-28T10:15:08.697+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 2.44%

Last modified Jun 17, 2026

CVE-2021-30167 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. The manage users profile services of the network camera device allows an authenticated. Remote attackers can modify URL parameters and further amend user’s information and escalate privileges to control the devices.. EPSS estimates a 2.44% chance of exploitation in the next 30 days.

Description

The manage users profile services of the network camera device allows an authenticated. Remote attackers can modify URL parameters and further amend user’s information and escalate privileges to control the devices.

Metrics

CVSS 3.1

9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

2.44%

82.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Meritlilin	P2r8852e2 Firmware	< 7.1.94.8908
Meritlilin	P2r8852e4 Firmware	< 7.1.94.8908
Meritlilin	P2r6852e2 Firmware	< 7.1.94.8908
Meritlilin	P2r6852e4 Firmware	< 7.1.94.8908
Meritlilin	P2r6552e2 Firmware	< 7.1.94.8908
Meritlilin	P2r6552e4 Firmware	< 7.1.94.8908
Meritlilin	P2r6352ae2 Firmware	< 7.1.94.8908
Meritlilin	P2r6352ae4 Firmware	< 7.1.94.8908
Meritlilin	P2r3052ae2 Firmware	< 7.1.94.8908
Meritlilin	P2g1052 Firmware	< 7.1.94.8908
Meritlilin	P2r8822e2 Firmware	< 7.1.94.8908
Meritlilin	P2r8822e4 Firmware	< 7.1.94.8908
Meritlilin	P2r6822e2 Firmware	< 7.1.94.8908
Meritlilin	P2r6822e4 Firmware	< 7.1.94.8908
Meritlilin	P2r6522e2 Firmware	< 7.1.94.8908
Meritlilin	P2r6522e4 Firmware	< 7.1.94.8908
Meritlilin	P2r6322ae2 Firmware	< 7.1.94.8908
Meritlilin	P2r6322ae4 Firmware	< 7.1.94.8908
Meritlilin	P2r3022ae2 Firmware	< 7.1.94.8908
Meritlilin	P2g1022 Firmware	< 7.1.94.8908
Meritlilin	P2g1022x Firmware	< 7.1.94.8908
Meritlilin	Z2r8852ax Firmware	< 7.1.94.8908
Meritlilin	Z2r8152x-P Firmware	< 7.1.94.8908
Meritlilin	Z2r8152x2-P Firmware	< 7.1.94.8908
Meritlilin	Z2r8052ex25 Firmware	< 7.1.94.8908
Meritlilin	Z2r6552x Firmware	< 7.1.94.8908
Meritlilin	Z2r6452ax Firmware	< 7.1.94.8908
Meritlilin	Z2r6452ax-P Firmware	< 7.1.94.8908
Meritlilin	Z2r8822ax Firmware	< 7.1.94.8908
Meritlilin	Z2r8122x-P Firmware	< 7.1.94.8908
Meritlilin	Z2r8122x2-P Firmware	< 7.1.94.8908
Meritlilin	Z2r8022ex25 Firmware	< 7.1.94.8908
Meritlilin	Z2r6522x Firmware	< 7.1.94.8908
Meritlilin	Z2r6422ax Firmware	< 7.1.94.8908
Meritlilin	Z2r6422ax-P Firmware	< 7.1.94.8908
Meritlilin	P3r6322e2 Firmware	< 7.1.94.8908
Meritlilin	P3r6522e2 Firmware	< 7.1.94.8908
Meritlilin	P3r8822e2 Firmware	< 7.1.94.8908
Meritlilin	Z3r6422x3 Firmware	< 7.1.94.8908
Meritlilin	Z3r6522x Firmware	< 7.1.94.8908
Meritlilin	Z3r8922x3 Firmware	< 7.1.94.8908

References

https://gist.github.com/keniver/86ebef688fb274b534da51ef1a84dd3eThird Party Advisory
https://www.chtsecurity.com/news/0b733a38-e616-4ff3-86a6-13e710643388Third Party Advisory
https://www.meritlilin.com/assets/uploads/support/file/M00166-TW.pdfVendor Advisory
https://www.twcert.org.tw/tw/cp-132-4676-391a5-1.htmlNot Applicable
https://gist.github.com/keniver/86ebef688fb274b534da51ef1a84dd3eThird Party Advisory
https://www.chtsecurity.com/news/0b733a38-e616-4ff3-86a6-13e710643388Third Party Advisory
https://www.meritlilin.com/assets/uploads/support/file/M00166-TW.pdfVendor Advisory
https://www.twcert.org.tw/tw/cp-132-4676-391a5-1.htmlNot Applicable

Timeline

Published: Apr 28, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-30167?

How severe is CVE-2021-30167?

CVE-2021-30167 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 2.44% probability of exploitation in the next 30 days.

How do I fix CVE-2021-30167?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-30167?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST