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CVE-2022-40799

80
FAUCET Score

CVE-2022-40799 is a critical data integrity failure in the 'Backup Config' feature of D-Link DNR-322L devices running firmware version 2.60B15 or earlier. This vulnerability allows an authenticated attacker to execute arbitrary OS-level commands on the device. With a CVSS score of 8.8 (HIGH), it is easily exploitable over the network with low privileges and no user interaction, leading to high impacts on confidentiality, integrity, and availability. The vulnerability is actively exploited in the wild, as indicated by its presence in the KEV catalog and a high EPSS score, despite a lack of public exploit code or significant media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
<= 2.60b15CPE matchmatch criteria
cpe:2.3:o:dlink:dnr-322l_firmware:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.8HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
31.72%
Probability of exploitation in next 30 days
EPSS Percentile
98.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
Added to KEV · Aug 5, 2025
This CVE's current EPSS score of 0.3172 is in the 97th percentile among its peer group of 17,829 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.3 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

cisa.gov / known-exploited-vulnerabilities-catalog
US Government Resource
dlink.com / uk/en/products/dnr-322l-cloud-network-video-recorder
Product
gitlab.com / lu-ka/cve-2022-40799
ExploitThird Party Advisory