Is CVE-2023-5964 actively exploited?

No active exploitation of CVE-2023-5964 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2023-5964 be exploited remotely?

Yes. CVE-2023-5964 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2023-5964?

CVE-2023-5964 has a CVSS score of 7.2 (HIGH).

HOME VULNERABILITIESCVE-2023-5964

HIGH

CVE-2023-5964

CWE-20Published: November 6, 2023· Updated: Jun 17, 2026

7.2

CVSS v3.1

Official Description

The 1E-Exchange-DisplayMessageinstruction that is part of the End-User Interaction product pack available on the 1E Exchange does not properly validate the Caption or Message parameters, which allows for a specially crafted input to perform arbitrary code execution with SYSTEM permissions. This instruction only runs on Windows clients.

To remediate this issue DELETE the instruction “Show dialogue with caption %Caption% and message %Message%” from the list of instructions in the Settings UI, and replace it with the new instruction 1E-Exchange-ShowNotification instruction available in the updated End-User Interaction product pack. The new instruction should show as “Show %Type% type notification with header %Header% and message %Message%” with a version of 7.1 or above.

NVD Source

Technical Analysis

CVE-2023-5964 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires high privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

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 7.2.