Medium severity6.5NVD Advisory· Published Dec 26, 2021· Updated Jun 17, 2026
CVE-2021-45608
CVE-2021-45608
Description
Certain D-Link, Edimax, NETGEAR, TP-Link, Tenda, and Western Digital devices are affected by an integer overflow by an unauthenticated attacker. Remote code execution from the WAN interface (TCP port 20005) cannot be ruled out; however, exploitability was judged to be of "rather significant complexity" but not "impossible." The overflow is in SoftwareBus_dispatchNormalEPMsgOut in the KCodes NetUSB kernel module. Affected NETGEAR devices are D7800 before 1.0.1.68, R6400v2 before 1.0.4.122, and R6700v3 before 1.0.4.122.
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Affected products
7- NETGEAR/NETGEARdescription
Patches
Vulnerability mechanics
References
2- kb.netgear.com/000064437/Security-Advisory-for-Pre-Authentication-Buffer-Overflow-on-Multiple-Products-PSV-2021-0278nvdPatchVendor Advisory
- www.sentinelone.com/labs/cve-2021-45608-netusb-rce-flaw-in-millions-of-end-user-routers/nvdExploitPatchThird Party Advisory
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