CVERadar
HIGH · CVSS 3.1 8.8CISA KEV · added 2025-08-05EPSS 33.65% (p98)Threat level 69

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

D-Link · DNR-322L · NVD published 2022-11-29 · posted 2025-08-05 · last modified 2026-06-17

What it is

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.

WeaknessCWE-494
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H (source: [email protected])
CISA due date2025-08-26 (for US federal agencies under BOD; a good deadline for everyone)
ATT&CK tacticsn/a

Exploitation evidence

First exploit evidence seen: 2025-08-05 (earliest date across the sources below).

Exploited in the wild

  • CISA KEV: listed since 2025-08-05. Source

Sources: CISA KEV.

No ATT&CK techniques could be mapped or inferred for this CVE yet.

How to fix it

CISA 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. (source: CISA KEV)

Fixed versions

  • dlink dnr-322l firmware: versions up to and including 2.60b15 are affected; check the vendor advisory for the fixed release.

Derived from the NVD CPE configuration (versionEndExcluding / versionEndIncluding). Always confirm with the vendor advisory.

Vendor advisories and patches

Detection Generic guidance

    Response checklist Generic guidance

    1. Inventory: find every instance of the affected product and version (include internet-facing and forgotten ones).
    2. Patch or mitigate per the vendor advisory; if you cannot patch, remove internet exposure or apply the vendor workaround.
    3. Assume compromise if the system was exposed before patching: hunt for the indicators in the advisory and review logs back to the disclosure date.
    4. Rotate credentials and secrets stored on or used by the affected system if compromise cannot be ruled out.

    Sources