CVE-2023-46976
CWE-77Published: October 31, 2023· Updated: Jun 17, 2026
Official Description
TOTOLINK A3300R 17.0.0cu.557_B20221024 contains a command injection via the file_name parameter in the UploadFirmwareFile function.
Risk Analysis
A command injection vulnerability exists in the TOTOLINK A3300R firmware during the firmware upload process. This critical flaw allows remote attackers to execute arbitrary commands without authentication.
There is no public exploit circulating for this vulnerability, and it is not tracked in the CISA KEV.
Update the TOTOLINK A3300R firmware to a version newer than 17.0.0cu.557_B20221024.
Technical Analysis
CVE-2023-46976 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.
A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.
CVSS v3.1 Vector Breakdown
Affected Vendors & Products
Exploit & PoC Resources
Official Patches & Advisories
All References (2)
Quick Facts
Related CVEs (CWE-77)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2023-46976 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts