How severe is CVE-2021-41419?

CVE-2021-41419 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-2021-41419 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 7% (93rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-41419?

CVE-2021-41419 primarily affects Qvis Dvr Firmware. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2021-41419?

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-2021-41419 published?

CVE-2021-41419 was published on 2022-07-18 and last updated on 2026-06-17.

CVE-2021-41419

CVE-2021-41419 is a critical-severity vulnerability in Qvis Dvr 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-502.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 7% (93rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-502
Affected product: Qvis Dvr Firmware
Published: 2022-07-18
Last modified: 2026-06-17

Description

QVIS NVR DVR before 2021-12-13 is vulnerable to Remote Code Execution via Java deserialization.

Frequently asked questions

What is CVE-2021-41419?: QVIS NVR DVR before 2021-12-13 is vulnerable to Remote Code Execution via Java deserialization.
How severe is CVE-2021-41419?: CVE-2021-41419 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-2021-41419 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 7% (93rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-41419?: CVE-2021-41419 primarily affects Qvis Dvr Firmware. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-41419?: 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-2021-41419 published?: CVE-2021-41419 was published on 2022-07-18 and last updated on 2026-06-17.

References

Affected products (2)

cpe:2.3:o:qvis:dvr_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:qvis:nvr_firmware:*:*:*:*:*:*:*:*

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