Is CVE-2018-16333 actively exploited?

No active exploitation of CVE-2018-16333 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2018-16333 be exploited remotely?

Yes. CVE-2018-16333 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2018-16333?

CVE-2018-16333 has a CVSS score of 7.5 (HIGH).

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HIGH

CVE-2018-16333

CWE-119Published: September 2, 2018· Updated: Jun 17, 2026

7.5

CVSS v3.1

Official Description

An issue was discovered on Tenda AC7 V15.03.06.44_CN, AC9 V15.03.05.19(6318)_CN, AC10 V15.03.06.23_CN, AC15 V15.03.05.19_CN, and AC18 V15.03.05.19(6318)_CN devices. There is a buffer overflow vulnerability in the router's web server. While processing the ssid parameter for a POST request, the value is directly used in a sprintf call to a local variable placed on the stack, which overrides the return address of the function, causing a buffer overflow.

NVD Source

Technical Analysis

CVE-2018-16333 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 availability disruption (denial of service), with a CVSS base score of 7.5.

From a weakness classification perspective (CWE-119): Buffer overflow vulnerabilities can lead to arbitrary code execution or denial of service by corrupting adjacent memory.