PT-2026-5575

Avast SecureLine 5.5.522.0 contains an unquoted service path vulnerability that allows local users to potentially execute code with elevated system privileges. Attackers can exploit the unquoted path in the service configuration to inject malicious code that would execute with LocalSystem account...

Avast SecureLine 代码问题漏洞

Avast SecureLine is a VPN proxy software developed by the Czech company Avast. Version 5.5.522.0 of Avast SecureLine contains a code vulnerability. This vulnerability stems from the lack of quotation marks around service paths, which may allow local users to execute code with elevated privileges...

CVE-2005-1719

Unknown vulnerability in ALWIL avast! antivirus 4 4.6.6230 and earlier, when running on Windows NT 4.0, does not properly detect certain viruses...

CVE-2019-18653

A Cross Site Scripting XSS issue exists in Avast AntiVirus Free, Internet Security, and Premiere Edition 19.3.2369 build 19.3.4241.440 in the Network Notification Popup, allowing an attacker to execute JavaScript code via an SSID Name...

CVE-2019-18893

XSS in the Video Downloader component before 1.5 of Avast Secure Browser 77.1.1831.91 and AVG Secure Browser 77.0.1790.77 allows websites to execute their code in the context of this component. While Video Downloader is technically a browser extension, it is granted a very wide set of privileges...

CVE-2019-18894

In Avast Premium Security 19.8.2393, attackers can send a specially crafted request to the local web server run by Avast Antivirus on port 27275 to support Bank Mode functionality. A flaw in the processing of a command allows execution of arbitrary OS commands with the privileges of the currently...

CVE-2019-11230

In Avast Antivirus before 19.4, a local administrator can trick the product into renaming arbitrary files by replacing the Logs\Update.log file with a symlink. The next time the product attempts to write to the log file, the target of the symlink is renamed. This defect can be exploited to rename...

CVE-2020-10860

An issue was discovered in Avast Antivirus before 20. An Arbitrary Memory Address Overwrite vulnerability in the aswAvLog Log Library results in Denial of Service of the Avast Service AvastSvc.exe...

CVE-2020-10862

An issue was discovered in Avast Antivirus before 20. The aswTask RPC endpoint for the TaskEx library in the Avast Service AvastSvc.exe allows attackers to achieve Local Privilege Escalation LPE via RPC...

CVE-2020-10866

An issue was discovered in Avast Antivirus before 20. The aswTask RPC endpoint for the TaskEx library in the Avast Service AvastSvc.exe allows attackers to enumerate the network interfaces and access points from a Low Integrity process via RPC...

CVE-2020-10863

An issue was discovered in Avast Antivirus before 20. The aswTask RPC endpoint for the TaskEx library in the Avast Service AvastSvc.exe allows attackers to trigger a shutdown via RPC from a Low Integrity process via TempShutDownMachine...

CVE-2020-10867

An issue was discovered in Avast Antivirus before 20. The aswTask RPC endpoint for the TaskEx library in the Avast Service AvastSvc.exe allows attackers to bypass intended access restrictions on tasks from an untrusted process, when Self Defense is enabled...

CVE-2021-27241

This vulnerability allows local attackers to delete arbitrary directories on affected installations of Avast Premium Security 20.8.2429 Build 20.8.5653.561. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The...

📄 AVAST Antivirus 25.11 Unquoted Service Path

AVAST Antivirus version 25.11 contains an unquoted service path vulnerability that allows local non-privileged users to potentially execute code with elevated SYSTEM privileges. Attackers can exploit the unquoted service path configuration to inject malicious executables that will be run with...

CVE-2025-3500

Integer Overflow or Wraparound vulnerability in Avast Antivirus 25.1.981.6 on Windows allows Privilege Escalation.This issue affects Antivirus: from 25.1.981.6 before 25.3...

CVE-2025-10101

Heap-based Buffer Overflow, Out-of-bounds Write vulnerability in Avast Antivirus on MacOS of a crafted Mach-O file may allow Local Execution of Code or Denial of Service of antivirus protection. This issue affects Antivirus: from 15.7 before 3.9.2025...

Exploit for CVE-2025-3500

Lab: CVE-2025-3500 - Integer Overflow in Avast Antivirus Privi...

Exploit for CVE-2025-3500

Lab: CVE-2025-3500 - Integer Overflow in Avast Antivirus Privi...

EUVD-2025-200023

Heap-based Buffer Overflow, Out-of-bounds Read vulnerability in Avast Antivirus on MacOS when scanning a malformed file may allow Local Execution of Code or Denial-of-Service of the anitvirus engine process.This issue affects Antivirus: from 8.3.70.94 before 8.3.70.98...

EUVD-2025-200024

Heap-based Buffer Overflow, Out-of-bounds Write vulnerability in Avast Antivirus on MacOS of a crafted Mach-O file may allow Local Execution of Code or Denial of Service of antivirus protection. This issue affects Antivirus: from 15.7 before 3.9.2025...