How severe is CVE-2021-44954?

CVE-2021-44954 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2021-44954 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (23rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-44954?

CVE-2021-44954 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-2021-44954?

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

When was CVE-2021-44954 published?

CVE-2021-44954 was published on 2022-07-18 and last updated on 2026-06-17.

CVE-2021-44954

CVE-2021-44954 is a high-severity vulnerability in Qvis Dvr Firmware with a CVSS 3.x base score of 7.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: High (CVSS 3.x base score 7.8)
EPSS exploit prediction: 0% (23rd percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Qvis Dvr Firmware
Published: 2022-07-18
Last modified: 2026-06-17

Description

In QVIS NVR DVR before 2021-12-13, an attacker can escalate privileges from a qvisdvr user to the root user by abusing a Sudo misconfiguration.

Frequently asked questions

What is CVE-2021-44954?: In QVIS NVR DVR before 2021-12-13, an attacker can escalate privileges from a qvisdvr user to the root user by abusing a Sudo misconfiguration.
How severe is CVE-2021-44954?: CVE-2021-44954 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-44954 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (23rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-44954?: CVE-2021-44954 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-2021-44954?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2021-44954 published?: CVE-2021-44954 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:*:*:*:*:*:*:*:*

More vulnerabilities in Qvis Dvr Firmware

CVE-2021-41419 — Critical (CVSS 9.8): QVIS NVR DVR before 2021-12-13 is vulnerable to Remote Code Execution via Java deserialization.

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