CVE-2023-38934
CWE-787Published: August 7, 2023· Updated: Jun 17, 2026
Official Description
Tenda F1203 V2.0.1.6, FH1203 V2.0.1.6 and FH1205 V2.0.0.7(775) was discovered to contain a stack overflow via the deviceId parameter in the formSetDeviceName function.
Risk Analysis
Tenda F1203, FH1203, and FH1205 routers are vulnerable to a stack-based buffer overflow via the deviceId parameter. This critical flaw allows remote, unauthenticated attackers to compromise the device.
No public exploit is known, and it is not in the CISA KEV catalog. The vulnerability is remotely exploitable with low complexity.
Apply the latest firmware updates. Limit access to the device management interface to trusted network segments.
Technical Analysis
CVE-2023-38934 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-2023-38934 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts