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CVE-2021-30167

MERIT LILIN ENT.CO.,LTD. P2/Z2/P3/Z3 IP camera - Broken Authentication

CRITICAL
9.8
CVSS Score
Published: April 28, 2021 at 09:30 AM UTC
Updated: June 17, 2026 at 03:49 AM UTC
86 products affected across 2 vendorsP2R6822E2 FirmwareZ2R6452AX FirmwareP3R6522E2 Firmware

Using P2/Z2/P3/Z3 IP camera firmware by MERIT LILIN ENT.CO.,LTD.?

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Severity
CRITICAL9.8
Exploit prediction
EPSS 2%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

P2G1022 Firmware· Meritlilin
95%
v < 7.1.94.8908
Affected range stops below 7.1.94.8908, so it looks safe — our inference, not a vendor statement
meritlilin-p2g1022 (same device)
P2G1022X Firmware· Meritlilin
95%
v < 7.1.94.8908
Affected range stops below 7.1.94.8908, so it looks safe — our inference, not a vendor statement
meritlilin-p2g1022x (same device)
P2G1052 Firmware· Meritlilin
95%
v < 7.1.94.8908
Affected range stops below 7.1.94.8908, so it looks safe — our inference, not a vendor statement
meritlilin-p2g1052 (same device)
P2R3022AE2 Firmware· Meritlilin
95%
v < 7.1.94.8908
Affected range stops below 7.1.94.8908, so it looks safe — our inference, not a vendor statement
meritlilin-p2r3022ae2 (same device)
P2R3052AE2 Firmware· Meritlilin
95%
v < 7.1.94.8908
Affected range stops below 7.1.94.8908, so it looks safe — our inference, not a vendor statement
meritlilin-p2r3052ae2 (same device)
P2R6322AE2 Firmware· Meritlilin
95%
v < 7.1.94.8908
Affected range stops below 7.1.94.8908, so it looks safe — our inference, not a vendor statement
meritlilin-p2r6322ae2 (same device)
P2R6322AE4 Firmware· Meritlilin
95%
v < 7.1.94.8908
Affected range stops below 7.1.94.8908, so it looks safe — our inference, not a vendor statement
meritlilin-p2r6322ae4 (same device)
P2R6352AE2 Firmware· Meritlilin
95%
v < 7.1.94.8908
Affected range stops below 7.1.94.8908, so it looks safe — our inference, not a vendor statement
meritlilin-p2r6352ae2 (same device)
P2R6352AE4 Firmware· Meritlilin
95%
v < 7.1.94.8908
Affected range stops below 7.1.94.8908, so it looks safe — our inference, not a vendor statement
meritlilin-p2r6352ae4 (same device)
P2R6522E2 Firmware· Meritlilin
95%
v < 7.1.94.8908
Affected range stops below 7.1.94.8908, so it looks safe — our inference, not a vendor statement
meritlilin-p2r6522e2 (same device)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (4)

x_refsource_MISCThird Party Advisory
Source: [email protected]
https://gist.github.com/keniver/86ebef688fb274b534da51ef1a84dd3e
x_refsource_MISCThird Party Advisory
Source: [email protected]
https://www.chtsecurity.com/news/0b733a38-e616-4ff3-86a6-13e710643388
x_refsource_MISCVendor Advisory
Source: [email protected]
https://www.meritlilin.com/assets/uploads/support/file/M00166-TW.pdf
x_refsource_MISCNot Applicable
Source: [email protected]
https://www.twcert.org.tw/tw/cp-132-4676-391a5-1.html

CVSS

9.8CRITICALtwcert
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-522CWE-306

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