How severe is CVE-2021-30167?

CVE-2021-30167 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2021-30167 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (82nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-30167?

CVE-2021-30167 primarily affects Meritlilin P2r8852e2 Firmware. In total, 41 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2021-30167?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2021-30167 published?

CVE-2021-30167 was published on 2021-04-28 and last updated on 2026-06-17.

CVE-2021-30167

CVE-2021-30167 is a critical-severity vulnerability in Meritlilin P2r8852e2 Firmware with a CVSS 3.x base score of 9.8. 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

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 9.0
EPSS exploit prediction: 2% (82nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-306
Affected product: Meritlilin P2r8852e2 Firmware
Published: 2021-04-28
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2021-30167?: 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.
How severe is CVE-2021-30167?: CVE-2021-30167 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-30167 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (82nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-30167?: CVE-2021-30167 primarily affects Meritlilin P2r8852e2 Firmware. In total, 41 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-30167?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2021-30167 published?: CVE-2021-30167 was published on 2021-04-28 and last updated on 2026-06-17.

References

Affected products (41)

cpe:2.3:o:meritlilin:p2r8852e2_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:meritlilin:p2r8852e4_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:meritlilin:p2r6852e2_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:meritlilin:p2r6852e4_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:meritlilin:p2r6552e2_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:meritlilin:p2r6552e4_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:meritlilin:p2r6352ae2_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:meritlilin:p2r6352ae4_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:meritlilin:p2r3052ae2_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:meritlilin:p2g1052_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:meritlilin:p2r8822e2_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:meritlilin:p2r8822e4_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:meritlilin:p2r6822e2_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:meritlilin:p2r6822e4_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:meritlilin:p2r6522e2_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:meritlilin:p2r6522e4_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:meritlilin:p2r6322ae2_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:meritlilin:p2r6322ae4_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:meritlilin:p2r3022ae2_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:meritlilin:p2g1022_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:meritlilin:p2g1022x_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:meritlilin:z2r8852ax_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:meritlilin:z2r8152x-p_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:meritlilin:z2r8152x2-p_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:meritlilin:z2r8052ex25_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:meritlilin:z2r6552x_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:meritlilin:z2r6452ax_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:meritlilin:z2r6452ax-p_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:meritlilin:z2r8822ax_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:meritlilin:z2r8122x-p_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:meritlilin:z2r8122x2-p_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:meritlilin:z2r8022ex25_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:meritlilin:z2r6522x_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:meritlilin:z2r6422ax_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:meritlilin:z2r6422ax-p_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:meritlilin:p3r6322e2_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:meritlilin:p3r6522e2_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:meritlilin:p3r8822e2_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:meritlilin:z3r6422x3_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:meritlilin:z3r6522x_firmware:*:*:*:*:*:*:*:*

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