CVE-2023-33669
CWE-787Published: June 2, 2023· Updated: Jun 17, 2026
Official Description
Tenda AC8V4.0-V16.03.34.06 was discovered to contain a stack overflow via the timeZone parameter in the sub_44db3c function.
Risk Analysis
Tenda AC8 firmware is susceptible to a stack-based buffer overflow via the timeZone parameter. This flaw could be exploited by a remote attacker to execute arbitrary code. The critical CVSS score indicates a significant threat to device integrity.
No public exploit is known, and it is not in the CISA KEV. The vulnerability is remotely exploitable.
Update the Tenda AC8 firmware to the most recent version. Restrict management access to authorized internal IP addresses.
Technical Analysis
CVE-2023-33669 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 (4)
Quick Facts
Related CVEs (CWE-787)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2023-33669 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts