How severe is CVE-2022-40799?

CVE-2022-40799 has a CVSS 3.1 base score of 8.8 (HIGH). EPSS estimates a 33.7% probability of exploitation in the next 30 days. It is listed in the CISA Known Exploited Vulnerabilities catalog.

CVE-2022-40799: D-Link DNR-322L Download of Code Without Integrity

CISA Known Exploited Vulnerabilities

D-Link DNR-322L Download of Code Without Integrity Check Vulnerability is confirmed as actively exploited and is listed in the CISA KEV catalog.

Added to KEV

2025-08-05

Remediation due

2025-08-26

Required action
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

CISA notes
https://www.dlink.com/uk/en/products/dnr-322l-cloud-network-video-recorder ; https://nvd.nist.gov/vuln/detail/CVE-2022-40799

Description

Data Integrity Failure in 'Backup Config' in D-Link DNR-322L <= 2.60B15 allows an authenticated attacker to execute OS level commands on the device.

Severity

CVSS 3.1 · CISA8.8 HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

SSVC · CISA-ADP

Exploitationactive

Automatableno

Technical impacttotal

Exploitation Context

as of October 13, 2026

All KEV statistics→

CISA added CVE-2022-40799 to the KEV catalog 980 days after its CVE record was published. The median for entries added in 2025 is 26 days.
It is one of 27 D-Link entries in the CISA KEV catalog, and one of 5 added in 2025.
Its current EPSS score (33.7%) is higher than that of 43% of CISA KEV entries.

Affected Products

Vendor	Product	Affected versions
-	-	n/a

References

1 Links

Other references

https://gitlab.com/lu-ka/cve-2022-40799

Record Details

Published

2022-11-29

Last updated

2025-10-21

Assigner (CNA)

mitre

Credited to

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CVE record data © The MITRE Corporation, used under the CVE Terms of Use. Exploited-in-the-wild data from the CISA Known Exploited Vulnerabilities catalog (CC0). Exploit prediction scores by FIRST EPSS (first.org/epss). This site is not endorsed or certified by MITRE, NVD, CISA, or FIRST.