CVE-2023-49405
CWE-787Published: December 7, 2023· Updated: Jun 17, 2026
Official Description
Tenda W30E V16.01.0.12(4843) was discovered to contain a stack overflow via the function UploadCfg.
Risk Analysis
A stack overflow vulnerability in the UploadCfg function of Tenda W30E devices allows for remote code execution. This critical flaw is highly dangerous due to its remote exploitability and lack of authentication requirements.
No public exploit is known to exist for this vulnerability, and it is not currently in the CISA KEV catalog.
Upgrade the Tenda W30E firmware to a patched version beyond 16.01.0.12(4843).
Technical Analysis
CVE-2023-49405 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.
From a weakness classification perspective (CWE-787): Out-of-bounds write vulnerabilities can lead to data corruption, crashes, or arbitrary code execution.
CVSS v3.1 Vector Breakdown
Affected Vendors & Products
Exploit & PoC Resources
Official Patches & Advisories
All References (2)
Quick Facts
Related CVEs (CWE-787)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2023-49405 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts