Is CVE-2023-27239 actively exploited?

No active exploitation of CVE-2023-27239 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2023-27239 be exploited remotely?

Yes. CVE-2023-27239 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2023-27239?

CVE-2023-27239 has a CVSS score of 9.8 (CRITICAL).

HOME VULNERABILITIESCVE-2023-27239

CRITICAL

CVE-2023-27239

CWE-787Published: March 15, 2023· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

Tenda AX3 V16.03.12.11 was discovered to contain a stack overflow via the shareSpeed parameter at /goform/WifiGuestSet.

NVD Source

Risk Analysis

Tenda AX3 firmware is vulnerable to a stack overflow via the shareSpeed parameter. This critical flaw allows for remote exploitation, potentially leading to full system compromise.

There is no known public exploit for this vulnerability, and it is not in the CISA KEV.

Recommended Action

Users should update the Tenda AX3 firmware to a version newer than 16.03.12.11.

Generated by the CTIWATCH analysis pipeline from this CVE's metadata (CVSS, EPSS, KEV status, exploit intelligence). Verify against vendor advisories before acting.

Technical Analysis

CVE-2023-27239 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.