How severe is CVE-2022-40799?

CVE-2022-40799 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2022-40799 being actively exploited?

Yes. CVE-2022-40799 is on CISA's Known Exploited Vulnerabilities (KEV) catalog, added on 2025-08-05, which means active exploitation has been confirmed. It should be prioritised for remediation.

What products are affected by CVE-2022-40799?

CVE-2022-40799 affects Dlink Dnr-322l Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2022-40799?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Because this CVE is known to be actively exploited, treat remediation as urgent — CISA KEV typically sets a short remediation deadline.

Does CVE-2022-40799 have an EU (EUVD) identifier?

Yes. CVE-2022-40799 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2022-44065. It is also flagged as exploited in the EUVD (since 2025-08-05).

When was CVE-2022-40799 published?

CVE-2022-40799 was published on 2022-11-29 and last updated on 2026-06-17.

CVE-2022-40799

CVE-2022-40799 is a high-severity vulnerability in Dlink Dnr-322l Firmware with a CVSS 3.x base score of 8.8. It is listed in CISA's Known Exploited Vulnerabilities (KEV) catalog, confirming it has been exploited in the wild (added 2025-08-05). The underlying weakness is classified as CWE-494.

Key facts

Severity: High (CVSS 3.x base score 8.8)
EPSS exploit prediction: 31% (98th percentile)
Actively exploited: Yes — listed in CISA KEV (added 2025-08-05)
EU (EUVD) id: EUVD-2022-44065
EU exploitation: Flagged exploited in the ENISA EU Vulnerability Database (since 2025-08-05)
Weakness: CWE-494
Affected product: Dlink Dnr-322l Firmware
Published: 2022-11-29
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2022-40799?: 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.
How severe is CVE-2022-40799?: CVE-2022-40799 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2022-40799 being actively exploited?: Yes. CVE-2022-40799 is on CISA's Known Exploited Vulnerabilities (KEV) catalog, added on 2025-08-05, which means active exploitation has been confirmed. It should be prioritised for remediation.
What products are affected by CVE-2022-40799?: CVE-2022-40799 affects Dlink Dnr-322l Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2022-40799?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Because this CVE is known to be actively exploited, treat remediation as urgent — CISA KEV typically sets a short remediation deadline.
Does CVE-2022-40799 have an EU (EUVD) identifier?: Yes. CVE-2022-40799 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2022-44065. It is also flagged as exploited in the EUVD (since 2025-08-05).
When was CVE-2022-40799 published?: CVE-2022-40799 was published on 2022-11-29 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:dlink:dnr-322l_firmware:*:*:*:*:*:*:*:*

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