Filtered by vendor Avast
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Total
75 CVE
| CVE | Vendors | Products | Updated | CVSS v2 | CVSS v3 |
|---|---|---|---|---|---|
| CVE-2020-20118 | 1 Avast | 1 Antivirus | 2026-07-09 | N/A | 5.5 MEDIUM |
| Buffer Overflow vulnerability in Avast AntiVirus before v.19.7 allows a local attacker to cause a denial of service via a crafted request to the aswSnx.sys driver. | |||||
| CVE-2025-3500 | 2 Avast, Microsoft | 2 Antivirus, Windows | 2026-06-17 | N/A | 9.0 CRITICAL |
| 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-2025-13032 | 2 Avast, Microsoft | 2 Antivirus, Windows | 2026-06-17 | N/A | 9.9 CRITICAL |
| Double fetch in sandbox kernel driver in Avast/AVG Antivirus <25.3 on windows allows local attacker to escalate privelages via pool overflow. | |||||
| CVE-2024-9484 | 2 Avast, Avg | 2 Antivirus, Antivirus | 2026-06-17 | N/A | 5.1 MEDIUM |
| An null-pointer-derefrence in the engine module in AVG/Avast Antivirus signature <24092400 released on 24/Sep/2024 on MacOS allows a malformed xar file to crash the application during file processing. | |||||
| CVE-2024-9483 | 2 Avast, Avg | 2 Antivirus, Antivirus | 2026-06-17 | N/A | 5.1 MEDIUM |
| A null-pointer-dereference in the signature verification module in AVG/Avast Antivirus signature <24092400 released on 24/Sep/2024 on MacOS may allow a malformed xar file to crash the application during processing. | |||||
| CVE-2024-9482 | 2 Avast, Avg | 2 Antivirus, Antivirus | 2026-06-17 | N/A | 5.1 MEDIUM |
| 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-2024-9481 | 2 Avast, Avg | 2 Antivirus, Antivirus | 2026-06-17 | N/A | 5.1 MEDIUM |
| 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 eml file to crash the application during file processing. | |||||
| CVE-2024-7233 | 1 Avast | 1 Free Antivirus | 2026-06-17 | N/A | 7.8 HIGH |
| Avast Free Antivirus AvastSvc Link Following Local Privilege Escalation Vulnerability. This vulnerability allows local attackers to escalate privileges on affected installations of Avast Free Antivirus. 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 Service. By creating a symbolic link, an attacker can abuse the service to delete a folder. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of SYSTEM. Was ZDI-CAN-23731. | |||||
| CVE-2024-7232 | 1 Avast | 1 Free Antivirus | 2026-06-17 | N/A | 7.8 HIGH |
| Avast Free Antivirus AvastSvc Link Following Local Privilege Escalation Vulnerability. This vulnerability allows local attackers to escalate privileges on affected installations of Avast Free Antivirus. 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 Service. By creating a symbolic link, an attacker can abuse the service to delete a folder. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of SYSTEM. Was ZDI-CAN-22963. | |||||
| CVE-2024-7231 | 1 Avast | 1 Cleanup Premium | 2026-06-17 | N/A | 7.8 HIGH |
| Avast Cleanup Premium 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 Cleanup Service. By creating a symbolic link, an attacker can abuse the service to delete a file. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of SYSTEM. Was ZDI-CAN-22894. | |||||
| CVE-2024-7230 | 1 Avast | 1 Cleanup Premium | 2026-06-17 | N/A | 7.8 HIGH |
| Avast Cleanup Premium 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 Cleanup Service. By creating a symbolic link, an attacker can abuse the service to delete a file. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of SYSTEM. Was ZDI-CAN-22893. | |||||
| CVE-2024-7229 | 1 Avast | 1 Cleanup Premium | 2026-06-17 | N/A | 7.8 HIGH |
| Avast Cleanup Premium 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 Cleanup Service. By creating a symbolic link, an attacker can abuse the service to delete a file. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of SYSTEM. Was ZDI-CAN-22892. | |||||
| CVE-2024-7228 | 1 Avast | 1 Free Antivirus | 2026-06-17 | N/A | 5.5 MEDIUM |
| Avast Free Antivirus Link Following Denial-of-Service Vulnerability. This vulnerability allows local attackers to create a denial-of-service condition on affected installations of Avast Free Antivirus. 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 Service. By creating a symbolic link, an attacker can abuse the service to create a folder. An attacker can leverage this vulnerability to create a denial-of-service condition on the system. Was ZDI-CAN-22806. | |||||
| CVE-2024-7227 | 1 Avast | 1 Free Antivirus | 2026-06-17 | N/A | 7.8 HIGH |
| Avast Free Antivirus AvastSvc Link Following Local Privilege Escalation Vulnerability. This vulnerability allows local attackers to escalate privileges on affected installations of Avast Free Antivirus. 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 Service. By creating a symbolic link, an attacker can abuse the service to delete a file. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of SYSTEM. Was ZDI-CAN-22272. | |||||
| CVE-2024-5102 | 2 Avast, Microsoft | 2 Antivirus, Windows | 2026-06-17 | N/A | 7.0 HIGH |
| A sym-linked file accessed via the repair function in Avast Antivirus <24.2 on Windows may allow user to elevate privilege to delete arbitrary files or run processes as NT AUTHORITY\SYSTEM. The vulnerability exists within the "Repair" (settings -> troubleshooting -> repair) feature, which attempts to delete a file in the current user's AppData directory as NT AUTHORITY\SYSTEM. A low-privileged user can make a pseudo-symlink and a junction folder and point to a file on the system. This can provide a low-privileged user an Elevation of Privilege to win a race-condition which will re-create the system files and make Windows callback to a specially-crafted file which could be used to launch a privileged shell instance. This issue affects Avast Antivirus prior to 24.2. | |||||
| CVE-2023-5760 | 1 Avast | 1 Avg Antivirus | 2026-06-17 | N/A | 8.2 HIGH |
| A time-of-check to time-of-use (TOCTOU) bug in handling of IOCTL (input/output control) requests. This TOCTOU bug leads to an out-of-bounds write vulnerability which can be further exploited, allowing an attacker to gain full local privilege escalation on the system.This issue affects Avast/Avg Antivirus: 23.8. | |||||
| CVE-2023-42125 | 1 Avast | 1 Premium Security | 2026-06-17 | N/A | 7.8 HIGH |
| 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. | |||||
| CVE-2023-42124 | 1 Avast | 1 Premium Security | 2026-06-17 | N/A | 7.8 HIGH |
| Avast Premium Security Sandbox Protection Incorrect Authorization 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. The issue results from incorrect authorization. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code outside the sandbox at medium integrity. . Was ZDI-CAN-20178. | |||||
| CVE-2023-1587 | 3 Avast, Avg, Microsoft | 3 Antivirus, Anti-virus, Windows | 2026-06-17 | N/A | 5.8 MEDIUM |
| 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-2023-1586 | 3 Avast, Avg, Microsoft | 3 Antivirus, Anti-virus, Windows | 2026-06-17 | N/A | 6.5 MEDIUM |
| Avast and AVG Antivirus for Windows were susceptible to a Time-of-check/Time-of-use (TOCTOU) vulnerability in the restore process leading to arbitrary file creation. The issue was fixed with Avast and AVG Antivirus version 22.11 | |||||