CVE-2022-40799
HighExploitedPublic exploitData Integrity Failure in 'Backup Config' in D-Link DNR-322L <= 2.60B15 allows an authenticated attacker to execute OS level commands on the device.
Published Nov 29, 2022 · Updated Nov 3, 2025
Key Facts
Patch immediately- CVE-2022-40799 is a high-severity vulnerability (CVSS 8.8 v3.1) affecting Dnr-322l Firmware (Dlink).
- It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Aug 5, 2025. Public exploit code is available.
- EPSS estimates a 34% probability of exploitation in the next 30 days.
- Fixed versions are available, including Dnr-322l Firmware <=2.60b15, Dnr-322l Firmware 2.60b15.
- Brandefense priority: patch immediately, because it is listed as exploited in the wild.
CVSS v3.1
8.8
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS (30-day exploit likelihood)
34%
Higher than 98.3% of all scored CVEs
Exploited in the wild
Yes
4 catalog listings
Public exploit code
Available
Proof-of-concept or weaponized module
Get the full CVE-2022-40799 brief as a PDF
Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.
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.
Known-Exploited Catalog Listings
| Catalog | Added | Remediation due | Ransomware use |
|---|---|---|---|
| CISA KEV | Aug 5, 2025 | Aug 26, 2025 | Not reported |
| Industry KEV feed | Aug 5, 2025 | Aug 26, 2025 | Not reported |
| CIRCL KEV | Aug 5, 2025 | Aug 26, 2025 | Not reported |
| ENISA EUVD | Aug 5, 2025 | n/a | Not reported |
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.
Affected Products
1 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| Dnr-322l FirmwareDlink | See advisory | 2.60b15 |
Patched Releases
Dnr-322l Firmware
<=2.60b15
Timeline
Publicly disclosed
Nov 29, 2022
Added to CISA KEV
Aug 5, 2025
Added to Industry KEV feed
Aug 5, 2025
Added to CIRCL KEV
Aug 5, 2025
Added to ENISA EUVD
Aug 5, 2025
Last updated
Nov 3, 2025
Weakness Type
- CWE-494 Download of Code Without Integrity Check
References
- exploithttps://gitlab.com/lu-ka/cve-2022-40799
- exploitVulnCheck exploitation report
- exploitVulnCheck exploitation report
- exploitVulnCheck exploitation report
- otherhttps://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-40799
FAQ
Common Questions.
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.
Affected: Dnr-322l Firmware (Dlink). The full list is in the CVE brief.
It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Aug 5, 2025.
Yes. It was added on Aug 5, 2025 with a federal remediation due date of Aug 26, 2025.
Public exploit code is available.
Fixed versions are available, including Dnr-322l Firmware <=2.60b15, Dnr-322l Firmware 2.60b15.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.
Is CVE-2022-40799 Running On Your Attack Surface?
Brandefense maps vulnerabilities like this one to your internet-facing assets and tells you exactly where to patch.
Request A Demo