CVE-2021-41419

CRITICALNVD 9.89.8—Elevated

9.8

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

CVSS v3: 9.8
EG Score: 9.8(medium)
EPSS: 99.0%
KEV: Not listed

Published

July 18, 2022

Last Modified

November 21, 2024

Advisory Details (3)

Auto-updated May 25, 2026

No patch confirmed yet.

generic

https://twitter.com/Me9187/status/1414904314368348163

generic

nuclei-templates/iot/qvisdvr-deserialization-rce.yaml at master · projectdiscovery/nuclei-templates · GitHub

https://github.com/projectdiscovery/nuclei-templates/blob/master/iot/qvisdvr-deserialization-rce.yaml

generic

CVE-2021-41419 · GitHub

https://gist.github.com/Meeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee/712ac36c8a08e2698e875169442a23a4

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-502Deserialization of Untrusted Data

Data Freshness Timeline

(refreshed 11× in last 7d / 20× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-06-02 20:11 UTCepss_batch
2026-06-02 20:11 UTCepss_batch
2026-06-01 13:50 UTCepss_batch
2026-06-01 13:50 UTCepss_batch
2026-05-31 22:29 UTCepss_batch
2026-05-31 22:29 UTCepss_batch
2026-05-31 00:15 UTCepss_batch
2026-05-31 00:15 UTCepss_batch
2026-05-29 13:42 UTCepss_batch
2026-05-28 13:43 UTCepss_batch
2026-05-28 13:43 UTCepss_batch
2026-05-27 13:39 UTCepss_batch
2026-05-27 13:39 UTCepss_batch
2026-05-26 13:42 UTCepss_batch
2026-05-26 13:42 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-25 18:47 UTCEG score recompute
2026-05-25 18:47 UTCGHSA enrichment

Publicly available exploits

(1 reference)

Working exploit code is in the public domain. Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

Nucleihttp/cves/2021/CVE-2021-41419.yaml
First seen Jan 1, 2021
QVIS NVR/DVR - Remote Code Execution
Open source ↗

Frequently asked(5)

What is CVE-2021-41419?

CVE-2021-41419 is a critical vulnerability published on July 18, 2022. QVIS NVR DVR before 2021-12-13 is vulnerable to Remote Code Execution via Java deserialization.

When was CVE-2021-41419 disclosed?

CVE-2021-41419 was first published in the National Vulnerability Database on July 18, 2022, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2021-41419 actively exploited?

CVE-2021-41419 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 99.0% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2021-41419?

CVE-2021-41419 has a CVSS v3 base score of 9.8 (NVD).

How do I remediate CVE-2021-41419?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-41419, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2021-41419

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CVE-2021-41419

📅 Published

🔄 Last Modified

📋 Advisory Details (3)

nuclei-templates/iot/qvisdvr-deserialization-rce.yaml at master · projectdiscovery/nuclei-templates · GitHub

CVE-2021-41419 · GitHub

Weakness Classification(1)

Data Freshness Timeline

Publicly available exploits

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2021-41419?

🔗 Related CVEs(same CWE)

Same CWE

Published

Last Modified

Advisory Details (3)

Frequently asked(5)

Related CVEs(same CWE)