CVE-2023-38935
CWE-787Published: August 7, 2023· Updated: Jun 17, 2026
Official Description
Tenda AC1206 V15.03.06.23, AC8 V4 V16.03.34.06, AC5 V1.0 V15.03.06.28, AC10 v4.0 V16.03.10.13 and AC9 V3.0 V15.03.06.42_multi were discovered to contain a tack overflow via the list parameter in the formSetQosBand function.
Risk Analysis
Several Tenda router models contain a stack-based buffer overflow in the formSetQosBand function. This critical flaw allows remote attackers to execute arbitrary code on the target device.
No public exploit is known, and it is not in the CISA KEV catalog. The vulnerability is remotely exploitable with low complexity.
Install the latest firmware updates provided by Tenda. Restrict access to the router's management interface.
Technical Analysis
CVE-2023-38935 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-2023-38935 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts