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Weekly Signal
Live intelligence Updated 20 Aug 2026 · 23:28 UTC

D-Link, Dlink · DNR-322L, Dnr-322l Firmware

CVE-2022-40799

D-Link DNR-322L Download of Code Without Integrity Check Vulnerability

Recommended action

Validate affected assets and exposure now, then remediate on an accelerated schedule. Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

View response plan
CVSS8.8
EPSS31.7%
KEVYes
ExploitationConfirmed exploitation
RemediationNot yet verified ↓

Assessment

Why it matters

CISA lists this vulnerability as known to be exploited; exploitation is confirmed; EPSS is 31.7%; technical severity is CVSS 8.8.

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.

Who should care

  • Teams operating DNR-322L, Dnr-322l Firmware
  • Vulnerability and exposure management teams
  • Security operations teams monitoring exploitation activity

Response plan

What I would do

  1. Confirm whether DNR-322L, Dnr-322l Firmware is present in the environment.
  2. Identify affected versions and establish whether vulnerable services are exposed or reachable.
  3. Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
  4. Review relevant security telemetry for evidence of attempted or successful exploitation.
  5. Document the remediation decision and track it to verified completion.

Treatment intelligence

Remediation intelligence

Not yet verified

Vendor sources are listed before government and third-party guidance. Confirm product applicability and change prerequisites before deployment.

Verification noteAutomated link verification has not completed for this guidance yet.

Technical details

CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE
CWE-494
Affected versions
D-Link DNR-322L; Dlink Dnr-322l Firmware (End Including 2.60b15)
Fixed versions
No explicit fixed version is currently recorded.
Published
29 November 2022
Attack vector
Network
Privileges required
Low
User interaction
None

Signal timeline

  1. CVE published
  2. Added to CISA KEV
  3. Latest EPSS score: 31.7%
  4. Signal calculated at 75

External references

Live public intelligence This assessment combines public-source evidence. Validate the affected product, version and exposure against your own environment before making a risk decision.