Vulnerability Report

CVE-2023-42125

RCE

Title: Avast Premium Security RCE

RCE

Proof Of Concept

No public PoC currently indexed for CVE-2023-42125.

CWE Category CWE-59

Published Date May 03, 2024

Modified Date Aug 13, 2025

Exploit Status Not Found

Score 7.8 CVSS v3.0

Exploit Probability (EPSS)

0.40%

Vulnerability Summary

CVE-2023-42125: Avast Premium Security Sandbox Protection Link Following Privilege Escalation Vulnerability. This vulnerability allows local attackers to escalate privileges on affected installations of Avast Premium Security. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the implementation of the sandbox feature. By creating a symbolic link, an attacker can abuse the service to create arbitrary namespace objects. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of SYSTEM. . Was ZDI-CAN-20383.

Impacted Vendors

avast 1

trendmicro 1

Reference Links

https://www.zerodayinitiative.com/advisories/ZDI-23-1475/ https://www.zerodayinitiative.com/advisories/ZDI-23-1475/

CVSS v3.0

Source Entity [email protected]

Severity HIGH

7.8

Attack Vector

LOCAL

Complexity

LOW

Privileges

N/A

Interaction

NONE

Confidentiality

N/A

Integrity

N/A

Availability

N/A

Scope

UNCHANGED

RAW VECTOR CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2023-42125 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

August 13, 2025 MODIFIED

Vulnerability data or affected products updated.

May 03, 2024 PUBLISHED

Vulnerability first announced in NVD.

Attack Vector Matrix

Access Vector LOCAL

Complexity LOW

Privileges N/A

Interaction NONE

CVSS Vector String


                                    CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected Stack

No specific products linked.