CVE-2022-40799

What the flaw is

D-Link DNR-322L contains a download of code without integrity check vulnerability that could allow an authenticated attacker to execute OS level commands on the device. The impacted products could be end-of-life (EoL) and/or end-of-service (EoS). Users should discontinue product utilization.

Description as published by CISA. We have not independently reproduced it.

What CISA requires

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

This deadline is binding on US federal civilian agencies under BOD 22-01. It is not a legal deadline for anyone else, but it is a useful urgency signal — CISA sets it by how actively the flaw is being used, not by CVSS.

Public exploit code

7 public repositories referencing this CVE have been catalogued on GitHub. Treat this as a strong signal to prioritise patching, not as a verified working exploit — many such repositories are scanners, write-ups or forks rather than functional code.

• ARPSyndicate/cve-scores
• CryptoGenNepal/CVE-KEV-RSS
• DevGreick/devgreick
• nomi-sec/PoC-in-GitHub
• packetinside/CISA_BOT
• rtfmkiesel/CVE-2022-40799
• ums91/CISA_BOT

Vendor advisories

• www.dlink.com/uk/en/products/dnr-322l-cloud-network-video-recorder
• nvd.nist.gov/vuln/detail/CVE-2022-40799

Primary sources

• NVD entry — CVSS score, CPE list and references
• CISA KEV catalog — the source for this page
• CVE Record at cve.org