Critical severity · published Dec 26, 2021
CVE-2021-45608
Certain D-Link, Edimax, NETGEAR, TP-Link, Tenda, and Western Digital devices are affected by an integer overflow by an unauthenticated attacker
9.8
CVSS
2.7%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)2.7% · higher than 86% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DF
D7800 Firmware · Netgear
before 1.0.1.68 · source: NVD
RF
R6400v2 Firmware · Netgear
before 1.0.4.122 · source: NVD
RF
R6700v3 Firmware · Netgear
before 1.0.4.122 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-45608
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-45608
Patch
https://kb.netgear.com/000064437/Security-Advisory-for-Pre-Authentication-Buffer-Overflow-on-Multiple-Products-PSV-2021-0278
Exploit
https://www.sentinelone.com/labs/cve-2021-45608-netusb-rce-flaw-in-millions-of-end-user-routers/
More from D7800 Firmware
9.8
CVE-2016-10174
NETGEAR WNR2000v5 Router Buffer Overflow Vulnerability
9.8
CVE-2021-45658
Certain NETGEAR devices are affected by server-side injection
9.8
CVE-2021-45618
Certain NETGEAR devices are affected by command injection by an unauthenticated attacker
9.8
CVE-2021-38529
Certain NETGEAR devices are affected by command injection by an unauthenticated attacker
9.8
CVE-2021-38516
Certain NETGEAR devices are affected by lack of access control at the function level