How severe is CVE-2022-2471?

CVE-2022-2471 has a CVSS 3.x base score of 9.9, rated critical severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2022-2471 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (65th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-2471?

CVE-2022-2471 primarily affects Ezviz Cs-c6n-a0-1c2wfr Firmware. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2022-2471?

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-2022-2471 published?

CVE-2022-2471 was published on 2022-09-15 and last updated on 2026-06-17.

CVE-2022-2471

CVE-2022-2471 is a critical-severity vulnerability in Ezviz Cs-c6n-a0-1c2wfr Firmware with a CVSS 3.x base score of 9.9. 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-121.

Key facts

Severity: Critical (CVSS 3.x base score 9.9)
EPSS exploit prediction: 1% (65th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-121
Affected product: Ezviz Cs-c6n-a0-1c2wfr Firmware
Published: 2022-09-15
Last modified: 2026-06-17

Description

Stack-based Buffer Overflow vulnerability in the EZVIZ Motion Detection component as used in camera models CS-CV248, CS-C6N-A0-1C2WFR, CS-DB1C-A0-1E2W2FR, CS-C6N-B0-1G2WF, CS-C3W-A0-3H4WFRL allows a remote attacker to execute remote code on the device. This issue affects: EZVIZ CS-CV248 versions prior to 5.2.3 build 220725. EZVIZ CS-C6N-A0-1C2WFR versions prior to 5.3.0 build 220428. EZVIZ CS-DB1C-A0-1E2W2FR versions prior to 5.3.0 build 220802. EZVIZ CS-C6N-B0-1G2WF versions prior to 5.3.0 build 220712. EZVIZ CS-C3W-A0-3H4WFRL versions prior to 5.3.5 build 220723.

Frequently asked questions

What is CVE-2022-2471?: Stack-based Buffer Overflow vulnerability in the EZVIZ Motion Detection component as used in camera models CS-CV248, CS-C6N-A0-1C2WFR, CS-DB1C-A0-1E2W2FR, CS-C6N-B0-1G2WF, CS-C3W-A0-3H4WFRL allows a remote attacker to execute remote code on the device. This issue affects: EZVIZ CS-CV248 versions prior to 5.2.3 build 220725. EZVIZ CS-C6N-A0-1C2WFR versions prior to 5.3.0 build 220428. EZVIZ CS-DB1C-A0-1E2W2FR versions prior to 5.3.0 build 220802. EZVIZ CS-C6N-B0-1G2WF versions prior to 5.3.0 build 220712. EZVIZ CS-C3W-A0-3H4WFRL versions prior to 5.3.5 build 220723.
How severe is CVE-2022-2471?: CVE-2022-2471 has a CVSS 3.x base score of 9.9, rated critical severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2022-2471 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (65th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-2471?: CVE-2022-2471 primarily affects Ezviz Cs-c6n-a0-1c2wfr Firmware. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2022-2471?: 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-2022-2471 published?: CVE-2022-2471 was published on 2022-09-15 and last updated on 2026-06-17.

References

https://www.bitdefender.com/blog/labs/vulnerabilities-identified-in-ezviz-smart-cams

Affected products (5)

cpe:2.3:o:ezviz:cs-c6n-a0-1c2wfr_firmware:5.3.0:build201719:*:*:*:*:*:*
cpe:2.3:o:ezviz:cs-db1c-a0-1e2w2fr_firmware:5.3.0:build211208:*:*:*:*:*:*
cpe:2.3:o:ezviz:cs-c6n-b0-1g2wf_firmware:5.3.0:build210731:*:*:*:*:*:*
cpe:2.3:o:ezviz:cs-c3w-a0-3h4wfrl_firmware:5.3.5:build220120:*:*:*:*:*:*
cpe:2.3:o:ezviz:cs-cv248_firmware:5.2.1:build180403:*:*:*:*:*:*

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