Is CVE-2023-36947 actively exploited?

No active exploitation of CVE-2023-36947 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2023-36947 be exploited remotely?

Yes. CVE-2023-36947 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2023-36947?

CVE-2023-36947 has a CVSS score of 9.8 (CRITICAL).

HOME VULNERABILITIESCVE-2023-36947

CRITICAL

CVE-2023-36947

CWE-787Published: October 16, 2023· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

TOTOLINK X5000R V9.1.0u.6118_B20201102 and TOTOLINK A7000R V9.1.0u.6115_B20201022 was discovered to contain a stack overflow via the File parameter in the function UploadCustomModule.

NVD Source

Risk Analysis

This vulnerability is a stack overflow in TOTOLINK devices caused by improper handling of the File parameter during module uploads. With a CVSS score of 9.8, it is considered critical because it allows for full system compromise via remote, unauthenticated access.

There is no known public exploit for this vulnerability, and it is not currently listed in CISA's KEV catalog. It is remotely exploitable with low attack complexity.

Recommended Action

Users should check for and apply firmware updates provided by TOTOLINK for the affected X5000R and A7000R models.

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-2023-36947 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.