Filtered by vendor Avast
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Total
54 CVE
| CVE | Vendors | Products | Updated | CVSS v2 | CVSS v3 |
|---|---|---|---|---|---|
| CVE-2019-17190 | 1 Avast | 1 Secure Browser | 2023-01-31 | 7.2 HIGH | 7.8 HIGH |
| A Local Privilege Escalation issue was discovered in Avast Secure Browser 76.0.1659.101. The vulnerability is due to an insecure ACL set by the AvastBrowserUpdate.exe (which is running as NT AUTHORITY\SYSTEM) when AvastSecureBrowser.exe checks for new updates. When the update check is triggered, the elevated process cleans the ACL of the Update.ini file in %PROGRAMDATA%\Avast Software\Browser\Update\ and sets all privileges to group Everyone. Because any low-privileged user can create, delete, or modify the Update.ini file stored in this location, an attacker with low privileges can create a hard link named Update.ini in this folder, and make it point to a file writable by NT AUTHORITY\SYSTEM. Once AvastBrowserUpdate.exe is triggered by the update check functionality, the DACL is set to a misconfigured value on the crafted Update.ini and, consequently, to the target file that was previously not writable by the low-privileged attacker. | |||||
| CVE-2022-4294 | 5 Avast, Avg, Avira and 2 more | 5 Antivirus, Antivirus, Avira Security and 2 more | 2023-01-13 | N/A | 7.8 HIGH |
| Norton, Avira, Avast and AVG Antivirus for Windows may be susceptible to a Privilege Escalation vulnerability, which is a type of issue whereby an attacker may attempt to compromise the software application to gain elevated access to resources that are normally protected from an application or user. | |||||
| CVE-2022-4291 | 1 Avast | 1 Script Shield | 2022-12-12 | N/A | 10.0 CRITICAL |
| The aswjsflt.dll library from Avast Antivirus windows contained a potentially exploitable heap corruption vulnerability that could enable an attacker to bypass the sandbox of the application it was loaded into, if applicable. This issue was fixed in version 18.0.1478 of the Script Shield Component. | |||||
| CVE-2022-4173 | 1 Avast | 2 Avast, Avg Antivirus | 2022-12-07 | N/A | 8.8 HIGH |
| A vulnerability within the malware removal functionality of Avast and AVG Antivirus allowed an attacker with write access to the filesystem, to escalate his privileges in certain scenarios. The issue was fixed with Avast and AVG Antivirus version 22.10. | |||||
| CVE-2021-45336 | 1 Avast | 1 Antivirus | 2022-07-12 | 7.2 HIGH | 8.8 HIGH |
| Privilege escalation vulnerability in the Sandbox component of Avast Antivirus prior to 20.4 allows a local sandboxed code to gain elevated privileges by using system IPC interfaces which could lead to exit the sandbox and acquire SYSTEM privileges. | |||||
| CVE-2021-45338 | 1 Avast | 1 Antivirus | 2022-07-12 | 7.2 HIGH | 7.8 HIGH |
| 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-2021-45337 | 1 Avast | 1 Antivirus | 2022-07-12 | 7.2 HIGH | 8.8 HIGH |
| 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 wsc_proxy.exe which could lead to acquire antimalware (AM-PPL) protection. | |||||
| CVE-2021-45339 | 1 Avast | 1 Antivirus | 2022-07-12 | 7.2 HIGH | 7.8 HIGH |
| 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-2022-28964 | 1 Avast | 1 Premium Security | 2022-06-02 | 5.4 MEDIUM | 7.1 HIGH |
| 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 | 1 Avast | 1 Premium Security | 2022-05-26 | 4.4 MEDIUM | 6.5 MEDIUM |
| Multiple DLL hijacking vulnerabilities via the components instup.exe and wsc_proxy.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-2021-45335 | 1 Avast | 1 Antivirus | 2022-01-07 | 7.2 HIGH | 8.8 HIGH |
| 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-2019-17093 | 2 Avast, Avg | 2 Antivirus, Anti-virus | 2021-07-21 | 4.4 MEDIUM | 7.8 HIGH |
| An issue was discovered in Avast antivirus before 19.8 and AVG antivirus before 19.8. A DLL Preloading vulnerability allows an attacker to implant %WINDIR%\system32\wbemcomn.dll, which is loaded into a protected-light process (PPL) and might bypass some of the self-defense mechanisms. This affects all components that use WMI, e.g., AVGSvc.exe 19.6.4546.0 and TuneupSmartScan.dll 19.1.884.0. | |||||
| CVE-2020-10868 | 2 Avast, Microsoft | 2 Antivirus, Windows | 2021-07-21 | 5.0 MEDIUM | 7.5 HIGH |
| 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 launch the Repair App RPC call from a Low Integrity process. | |||||
| CVE-2020-10864 | 2 Avast, Microsoft | 2 Antivirus, Windows | 2021-07-21 | 5.0 MEDIUM | 6.5 MEDIUM |
| 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 reboot via RPC from a Low Integrity process. | |||||
| CVE-2020-13657 | 1 Avast | 2 Avg Antivirus, Free Antivirus | 2021-07-21 | 2.1 LOW | 5.5 MEDIUM |
| An elevation of privilege vulnerability exists in Avast Free Antivirus and AVG AntiVirus Free before 20.4 due to improperly handling hard links. The vulnerability allows local users to take control of arbitrary files. | |||||
| CVE-2020-10862 | 2 Avast, Microsoft | 2 Antivirus, Windows | 2021-07-21 | 4.6 MEDIUM | 7.8 HIGH |
| 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-2020-9399 | 1 Avast | 3 Antivirus For Linux, Antivirus Pro, Antivirus Pro Plus | 2021-07-21 | 4.3 MEDIUM | 5.5 MEDIUM |
| The Avast AV parsing engine allows virus-detection bypass via a crafted ZIP archive. This affects versions before 12 definitions 200114-0 of Antivirus Pro, Antivirus Pro Plus, and Antivirus for Linux. | |||||
| CVE-2020-10863 | 2 Avast, Microsoft | 2 Antivirus, Windows | 2021-07-21 | 5.0 MEDIUM | 7.5 HIGH |
| 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-2020-15024 | 1 Avast | 1 Antivirus | 2021-07-21 | 2.1 LOW | 5.5 MEDIUM |
| 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. | |||||
| CVE-2020-10861 | 2 Avast, Microsoft | 2 Antivirus, Windows | 2021-07-21 | 6.4 MEDIUM | 7.5 HIGH |
| 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 Arbitrary File Deletion from Avast Program Path via RPC, when Self Defense is Enabled. | |||||