Description
Actiontec WCB6200Q uh_tcp_recv_content Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of Actiontec WCB6200Q routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the HTTP server. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length buffer. An attacker can leverage this vulnerability to execute code in the context of the HTTP server. Was ZDI-CAN-21410.
References (1)
Core 1
Core References
Third Party Advisory, VDB Entry x_research-advisory
https://www.zerodayinitiative.com/advisories/ZDI-24-805/
Scores
CVSS v3
8.8
EPSS
0.0170
EPSS Percentile
82.4%
Attack Vector
ADJACENT_NETWORK
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
total
Details
CWE
CWE-120
Status
published
Products (1)
actiontec/wcb6200q_firmware
1.2l.03.5
Published
Jun 19, 2024
Tracked Since
Feb 18, 2026