Is CVE-2023-5399 actively exploited?

No active exploitation of CVE-2023-5399 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2023-5399 be exploited remotely?

Yes. CVE-2023-5399 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2023-5399?

CVE-2023-5399 has a CVSS score of 9.8 (CRITICAL).

HOME VULNERABILITIESCVE-2023-5399

CRITICAL

CVE-2023-5399

CWE-22Published: October 4, 2023· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

A CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path

Traversal') vulnerability exists that could cause tampering of files on the personal computer

running C-Bus when using the File Command.

NVD Source

Risk Analysis

Schneider Electric C-Bus Toolkit is affected by a path traversal vulnerability that allows unauthorized file tampering. This critical flaw enables attackers to modify system files remotely.

No public exploit is known, and it is not in the KEV catalog. The vulnerability is remotely exploitable with low attack complexity.

Recommended Action

Apply the latest security updates provided by Schneider Electric for the C-Bus Toolkit.

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-2023-5399 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.