MAL-2025-34909 Malicious code in test-mlw2-avast-nopal (npm)

The package test-mlw2-avast-nopal was found to contain malicious code...

Avast Cleanup Premium TuneupSvc Link Following Local Privilege Escalation Vulnerability

This vulnerability allows local attackers to escalate privileges on affected installations of Avast Cleanup Premium. 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 Avast...

Avast Cleanup Premium TuneupSvc Link Following Local Privilege Escalation Vulnerability

This vulnerability allows local attackers to escalate privileges on affected installations of Avast Cleanup Premium. 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 Avast...

The vulnerability of the do_update_vps() function in the Avast Business Antivirus for Linux antivirus tool allows attackers to perform spoofing attacks.

The vulnerability of the doupdatevps function in the Avast Business Antivirus for Linux antivirus tool is related to the use of files and directories accessible from external sources. Exploiting this vulnerability could allow attackers to carry out spoofing attacks by manipulating update files...

CVE-2025-4134

Lack of file validation in doupdatevps in Avast Business Antivirus for Linux 4.5 on Linux allows local user to spoof or tamper with the update file via an unverified file write...

CVE-2025-4134

Lack of file validation in doupdatevps in Avast Business Antivirus for Linux 4.5 on Linux allows local user to spoof or tamper with the update file via an unverified file write...

CVE-2025-4134 Lack of file validation in Avast Business Antivirus for Linux allows writing untrusted update files

Lack of file validation in doupdatevps in Avast Business Antivirus for Linux 4.5 on Linux allows local user to spoof or tamper with the update file via an unverified file write...

CVE-2025-4134 Lack of file validation in Avast Business Antivirus for Linux allows writing untrusted update files

Lack of file validation in doupdatevps in Avast Business Antivirus for Linux 4.5 on Linux allows local user to spoof or tamper with the update file via an unverified file write...

CVE-2025-4134

Avast Business Antivirus for Linux 4.5 contains a vulnerability in the do_update_vps function that lacks proper file validation, allowing a local user to spoof or tamper with update files via an unverified file write. This is a local-privilege issue with potential impact on update integrity. A pa...

Avast Business Antivirus 安全漏洞

Avast Business Antivirus is a commercial network antivirus from Avast. A security vulnerability exists in Avast Business Antivirus version 4.5, which stems from insufficient file validation and could lead to tampering of update files...

PT-2025-23086 · Avast · Avast Business Antivirus For Linux

Name of the Vulnerable Software and Affected Versions: Avast Business Antivirus for Linux version 4.5 Description: The issue is related to a lack of file validation in the do update vps function, allowing a local user to potentially spoof or tamper with update files through unverified file writes...

CVE-2024-9482

An out-of-bounds write in the engine module in AVG/Avast Antivirus signature 24092400 released on 24/Sep/2024 on MacOS allows a malformed Mach-O file to crash the application during file processing...

CVE-2023-1587

Avast and AVG Antivirus for Windows were susceptible to a NULL pointer dereference issue via RPC-interface. The issue was fixed with Avast and AVG Antivirus version 22.11...

CVE-2022-28964

An arbitrary file write vulnerability in Avast Premium Security before v21.11.2500 build 21.11.6809.528 allows attackers to cause a Denial of Service DoS via a crafted DLL file...

CVE-2022-28965

Multiple DLL hijacking vulnerabilities via the components instup.exe and wscproxy.exe in Avast Premium Security before v21.11.2500 allows attackers to execute arbitrary code or cause a Denial of Service DoS via a crafted DLL file...

CVE-2021-45337

Privilege escalation vulnerability in the Self-Defense driver of Avast Antivirus prior to 20.8 allows a local user with SYSTEM privileges to gain elevated privileges by "hollowing" process wscproxy.exe which could lead to acquire antimalware AM-PPL protection...

CVE-2021-45335

Sandbox component in Avast Antivirus prior to 20.4 has an insecure permission which could be abused by local user to control the outcome of scans, and therefore evade detection or delete arbitrary system files...

CVE-2021-45338

Multiple privilege escalation vulnerabilities in Avast Antivirus prior to 20.4 allow a local user to gain elevated privileges by calling unnecessarily powerful internal methods of the main antivirus service which could lead to the 1 arbitrary file delete, 2 write and 3 reset security...

CVE-2021-45339

Privilege escalation vulnerability in Avast Antivirus prior to 20.4 allows a local user to gain elevated privileges by "hollowing" trusted process which could lead to the bypassing of Avast self-defense...

CVE-2020-15024

An issue was discovered in the Login Password feature of the Password Manager component in Avast Antivirus 20.1.5069.562. An entered password continues to be stored in Windows main memory after a logout, and after a Lock Vault operation...