Filtered by vendor Avast
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Total
52 CVE
| CVE | Vendors | Products | Updated | CVSS v2 | CVSS v3 |
|---|---|---|---|---|---|
| CVE-2023-5760 | 1 Avast | 1 Avg Antivirus | 2023-11-16 | N/A | 7.0 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-2022-28965 | 1 Avast | 1 Premium Security | 2023-08-08 | 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-2021-45338 | 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-2021-45339 | 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-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-2021-45336 | 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-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-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-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-2020-13657 | 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-2020-15024 | 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. | |||||
| 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-2020-10864 | 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-2020-9399 | 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-2020-10868 | 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-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-2020-23907 | 1 Avast | 1 Retdec | 2021-04-26 | 7.5 HIGH | 9.8 CRITICAL |
| An issue was discovered in retdec v3.3. In function canSplitFunctionOn() of ir_modifications.cpp, there is a possible out of bounds read due to a heap buffer overflow. The impact is: Deny of Service, Memory Disclosure, and Possible Code Execution. | |||||
| CVE-2021-27241 | 1 Avast | 1 Premium Security | 2021-04-01 | 3.6 LOW | 6.1 MEDIUM |
| 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 specific flaw exists within the AvastSvc.exe module. By creating a directory junction, an attacker can abuse the service to delete a directory. An attacker can leverage this vulnerability to create a denial-of-service condition on the system. Was ZDI-CAN-12082. | |||||
| CVE-2015-8620 | 1 Avast | 4 Avast Free Antivirus, Avast Internet Security, Avast Premier and 1 more | 2021-03-26 | 7.2 HIGH | 7.8 HIGH |
| Heap-based buffer overflow in the Avast virtualization driver (aswSnx.sys) in Avast Internet Security, Pro Antivirus, Premier, and Free Antivirus before 11.1.2253 allows local users to gain privileges via a Unicode file path in an IOCTL request. | |||||
| CVE-2020-25289 | 1 Avast | 1 Secureline Vpn | 2020-09-17 | 2.1 LOW | 5.5 MEDIUM |
| The VPN service in AVAST SecureLine before 5.6.4982.470 allows local users to write to arbitrary files via an Object Manager symbolic link from the log directory (which has weak permissions). | |||||
| CVE-2018-12572 | 1 Avast | 1 Free Antivirus | 2020-08-24 | 2.1 LOW | 7.8 HIGH |
| Avast Free Antivirus prior to 19.1.2360 stores user credentials in memory upon login, which allows local users to obtain sensitive information by dumping AvastUI.exe application memory and parsing the data. | |||||
| CVE-2019-17190 | 1 Avast | 1 Secure Browser | 2020-08-24 | 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-2020-10860 | 2 Avast, Microsoft | 2 Antivirus, Windows | 2020-04-02 | 5.0 MEDIUM | 7.5 HIGH |
| 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-2020-10865 | 2 Avast, Microsoft | 2 Antivirus, Windows | 2020-04-02 | 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 make arbitrary changes to the Components section of the Stats.ini file via RPC from a Low Integrity process. | |||||
| CVE-2020-10866 | 2 Avast, Microsoft | 2 Antivirus, Windows | 2020-04-02 | 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 enumerate the network interfaces and access points from a Low Integrity process via RPC. | |||||
| CVE-2020-10867 | 2 Avast, Microsoft | 2 Antivirus, Windows | 2020-04-02 | 7.5 HIGH | 9.8 CRITICAL |
| 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-2020-8987 | 1 Avast | 2 Antitrack, Avg Antitrack | 2020-03-10 | 5.8 MEDIUM | 7.4 HIGH |
| Avast AntiTrack before 1.5.1.172 and AVG Antitrack before 2.0.0.178 proxies traffic to HTTPS sites but does not validate certificates, and thus a man-in-the-middle can host a malicious website using a self-signed certificate. No special action necessary by the victim using AntiTrack with "Allow filtering of HTTPS traffic for tracking detection" enabled. (This is the default configuration.) | |||||
| CVE-2019-18893 | 3 Avast, Avg, Video Downloader Project | 3 Secure Browser, Secure Browser, Video Downloader | 2020-01-22 | 4.3 MEDIUM | 6.1 MEDIUM |
| 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 and can for example access cookies and browsing history, spy on the user while they are surfing the web, and alter their surfing experience in almost arbitrary ways. | |||||
| CVE-2019-18894 | 1 Avast | 1 Premium Security | 2020-01-21 | 9.3 HIGH | 7.8 HIGH |
| 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 logged in user. This allows for example attackers who compromised a browser extension to escape from the browser sandbox. | |||||
| CVE-2019-18653 | 2 Avast, Microsoft | 2 Antivirus, Windows | 2019-11-06 | 4.3 MEDIUM | 6.1 MEDIUM |
| 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-2017-8308 | 1 Avast | 1 Antivirus | 2019-10-03 | 5.0 MEDIUM | 7.5 HIGH |
| In Avast Antivirus before v17, an unprivileged user (and thus malware or a virus) can mark an arbitrary process as Trusted from the perspective of the Avast product. This bypasses the Self-Defense feature of the product, opening a door to subsequent attack on many of its components. | |||||
| CVE-2017-8307 | 1 Avast | 1 Antivirus | 2019-10-03 | 7.5 HIGH | 9.8 CRITICAL |
| In Avast Antivirus before v17, using the LPC interface API exposed by the AvastSVC.exe Windows service, it is possible to launch predefined binaries, or replace or delete arbitrary files. This vulnerability is exploitable by any unprivileged user when Avast Self-Defense is disabled. It is also exploitable in conjunction with CVE-2017-8308 when Avast Self-Defense is enabled. The vulnerability allows for Denial of Service attacks and hiding traces of a possible attack. | |||||
| CVE-2017-5567 | 1 Avast | 4 Free Antivirus, Internet Security, Premier and 1 more | 2019-10-03 | 7.2 HIGH | 6.7 MEDIUM |
| Code injection vulnerability in Avast Premier 12.3 (and earlier), Internet Security 12.3 (and earlier), Pro Antivirus 12.3 (and earlier), and Free Antivirus 12.3 (and earlier) allows a local attacker to bypass a self-protection mechanism, inject arbitrary code, and take full control of any Avast process via a "DoubleAgent" attack. One perspective on this issue is that (1) these products do not use the Protected Processes feature, and therefore an attacker can enter an arbitrary Application Verifier Provider DLL under Image File Execution Options in the registry; (2) the self-protection mechanism is intended to block all local processes (regardless of privileges) from modifying Image File Execution Options for these products; and (3) this mechanism can be bypassed by an attacker who temporarily renames Image File Execution Options during the attack. | |||||
| CVE-2019-11230 | 1 Avast | 1 Antivirus | 2019-07-24 | 3.6 LOW | 4.4 MEDIUM |
| 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 a critical product file (e.g., AvastSvc.exe), causing the product to fail to start on the next system restart. | |||||
| CVE-2007-2845 | 1 Avast | 1 Avast Antivirus | 2018-10-16 | 9.3 HIGH | N/A |
| Heap-based buffer overflow in the CAB unpacker in avast! Anti-Virus Managed Client before 4.7.700 allows user-assisted remote attackers to execute arbitrary code via a crafted CAB archive, resulting from an "integer cast around". | |||||
| CVE-2007-1672 | 1 Avast | 1 Avast Antivirus | 2018-10-16 | 7.8 HIGH | N/A |
| avast! antivirus before 4.7.981 allows remote attackers to cause a denial of service (infinite loop) via a ZOO archive with a direntry structure that points to a previous file. | |||||
| CVE-2007-1673 | 9 Amavis, Avast, Avira and 6 more | 13 Amavis, Avast Antivirus, Avast Antivirus Home and 10 more | 2018-10-16 | 7.8 HIGH | N/A |
| unzoo.c, as used in multiple products including AMaViS 2.4.1 and earlier, allows remote attackers to cause a denial of service (infinite loop) via a ZOO archive with a direntry structure that points to a previous file. | |||||
| CVE-2008-6846 | 1 Avast | 1 Avast Antivirus | 2018-10-11 | 6.8 MEDIUM | N/A |
| Multiple stack-based buffer overflows in avast! Linux Home Edition 1.0.5, 1.0.5-1, and 1.0.8 allow remote attackers to cause a denial of service (application crash) or execute arbitrary code via a malformed (1) ISO or (2) RPM file. | |||||
| CVE-2008-5523 | 2 Avast, Microsoft | 2 Avast Antivirus, Internet Explorer | 2018-10-11 | 9.3 HIGH | N/A |
| avast! antivirus 4.8.1281.0, when Internet Explorer 6 or 7 is used, allows remote attackers to bypass detection of malware in an HTML document by placing an MZ header (aka "EXE info") at the beginning, and modifying the filename to have (1) no extension, (2) a .txt extension, or (3) a .jpg extension, as demonstrated by a document containing a CVE-2006-5745 exploit. | |||||
| CVE-2008-1625 | 1 Avast | 2 Avast Antivirus Home, Avast Antivirus Professional | 2018-10-11 | 6.8 MEDIUM | N/A |
| aavmker4.sys in avast! Home and Professional 4.7 for Windows does not properly validate input to IOCTL 0xb2d60030, which allows local users to gain privileges via certain IOCTL requests. | |||||
| CVE-2010-0705 | 2 Avast, Microsoft | 4 Avast Antivirus Home, Avast Antivirus Professional, Windows 2000 and 1 more | 2018-10-10 | 7.2 HIGH | N/A |
| Aavmker4.sys in avast! 4.8 through 4.8.1368.0 and 5.0 before 5.0.418.0 running on Windows 2000 and XP does not properly validate input to IOCTL 0xb2d60030, which allows local users to cause a denial of service (system crash) or execute arbitrary code to gain privileges via IOCTL requests using crafted kernel addresses that trigger memory corruption. | |||||
| CVE-2009-4049 | 1 Avast | 2 Avast Antivirus Home, Avast Antivirus Professional | 2018-10-10 | 7.2 HIGH | N/A |
| Heap-based buffer overflow in aswRdr.sys (aka the TDI RDR driver) in avast! Home and Professional 4.8.1356.0 allows local users to cause a denial of service (memory corruption) or possibly gain privileges via crafted arguments to IOCTL 0x80002024. | |||||
| CVE-2009-3522 | 1 Avast | 2 Avast Antivirus Home, Avast Antivirus Professional | 2018-10-10 | 7.2 HIGH | N/A |
| Stack-based buffer overflow in aswMon2.sys in avast! Home and Professional for Windows 4.8.1351, and possibly other versions before 4.8.1356, allows local users to cause a denial of service (system crash) and possibly gain privileges via a crafted IOCTL request to IOCTL 0xb2c80018. | |||||
| CVE-2010-3126 | 1 Avast | 1 Avast Antivirus Free | 2017-09-19 | 9.3 HIGH | N/A |
| Untrusted search path vulnerability in avast! Free Antivirus version 5.0.594 and earlier allows local users, and possibly remote attackers, to execute arbitrary code and conduct DLL hijacking attacks via a Trojan horse mfc90loc.dll that is located in the same folder as an avast license (.avastlic) file. | |||||
| CVE-2009-3523 | 1 Avast | 2 Avast Antivirus Home, Avast Antivirus Professional | 2017-09-19 | 6.9 MEDIUM | N/A |
| aavmKer4.sys in avast! Home and Professional for Windows before 4.8.1356 does not properly validate input to IOCTLs (1) 0xb2d6000c and (2) 0xb2d60034, which allows local users to gain privileges via IOCTL requests using crafted kernel addresses that trigger memory corruption, a different vulnerability than CVE-2008-1625. | |||||
| CVE-2009-3524 | 1 Avast | 2 Avast Antivirus Home, Avast Antivirus Professional | 2017-09-19 | 7.2 HIGH | N/A |
| Unspecified vulnerability in ashWsFtr.dll in avast! Home and Professional for Windows before 4.8.1356 has unknown impact and local attack vectors. | |||||
| CVE-2007-6265 | 1 Avast | 2 Avast Antivirus Home, Avast Antivirus Professional | 2017-08-08 | 6.8 MEDIUM | N/A |
| Unspecified vulnerability in avast! 4 Home and Professional Editions before 4.7.1098 allows remote attackers to have an unknown impact via a crafted TAR archive. | |||||
| CVE-2015-5662 | 1 Avast | 1 Avast Antivirus | 2016-12-08 | 6.4 MEDIUM | N/A |
| Directory traversal vulnerability in Avast before 150918-0 allows remote attackers to delete or write to arbitrary files via a crafted entry in a ZIP archive. | |||||
| CVE-2016-4025 | 1 Avast | 11 Business Security, Email Server Security, Endpoint Protection and 8 more | 2016-11-04 | 2.1 LOW | 5.5 MEDIUM |
| Avast Internet Security v11.x.x, Pro Antivirus v11.x.x, Premier v11.x.x, Free Antivirus v11.x.x, Business Security v11.x.x, Endpoint Protection v8.x.x, Endpoint Protection Plus v8.x.x, Endpoint Protection Suite v8.x.x, Endpoint Protection Suite Plus v8.x.x, File Server Security v8.x.x, and Email Server Security v8.x.x allow attackers to bypass the DeepScreen feature via a DeviceIoControl call. | |||||