Vendor

Avast\!

Products

CVEs

Across products

201

Status

Private

Products

Recent CVEs

CVE	Sev	Risk	CVSS	EPSS	Published	Description
CVE-2017-8307	Cri	0.64	9.8	0.01	Apr 27, 2017	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-2016-3986	Hig	0.54	7.8	0.03	Apr 12, 2016	Avast allows remote attackers to cause a denial of service (memory corruption) and possibly execute arbitrary code via a crafted PE file, related to authenticode parsing.
CVE-2015-8620	Hig	0.51	7.8	0.00	Apr 13, 2016	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-2017-8308	Hig	0.49	7.5	0.01	Apr 27, 2017	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-2017-5567	Med	0.44	6.7	0.00	Mar 21, 2017	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-2010-5075		0.03	—	0.01	Dec 28, 2014	Integer overflow in aswFW.sys 5.0.594.0 in Avast! Internet Security 5.0 Korean Trial allows local users to cause a denial of service (memory corruption and panic) via a crafted IOCTL_ASWFW_COMM_PIDINFO_RESULTS DeviceIoControl request to \\.\aswFW.
CVE-2010-3126		0.03	—	0.02	Aug 26, 2010	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-2010-0705		0.03	—	0.00	Feb 25, 2010	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		0.03	—	0.00	Nov 23, 2009	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-2009-3523		0.03	—	0.00	Oct 1, 2009	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-2009-3522		0.03	—	0.00	Oct 1, 2009	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-2008-1625		0.03	—	0.00	Apr 2, 2008	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-2007-2846		0.02	—	0.31	May 24, 2007	Heap-based buffer overflow in the SIS unpacker in avast! Anti-Virus Managed Client before 4.7.700 allows user-assisted remote attackers to execute arbitrary code via a crafted SIS archive, resulting from an "integer cast around."
CVE-2007-2845		0.01	—	0.18	May 24, 2007	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-2023-5760		0.00	—	0.00	Nov 8, 2023	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-2015-5662		0.00	—	0.00	Oct 18, 2015	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-2013-0122		0.00	—	0.00	Apr 22, 2013	The avast! Mobile Security application before 2.0.4400 for Android allows attackers to cause a denial of service (application crash) via a crafted application that sends an intent to com.avast.android.mobilesecurity.app.scanner.DeleteFileActivity with zero arguments.
CVE-2010-5151		0.00	—	0.00	Aug 25, 2012	Race condition in avast! Internet Security 5.0.462 on Windows XP allows local users to bypass kernel-mode hook handlers, and execute dangerous code that would otherwise be blocked by a handler but not blocked by signature-based malware detection, via certain user-space memory changes during hook-handler execution, aka an argument-switch attack or a KHOBE attack. NOTE: this issue is disputed by some third parties because it is a flaw in a protection mechanism for situations where a crafted program has already begun to execute
CVE-2009-3524		0.00	—	0.00	Oct 1, 2009	Unspecified vulnerability in ashWsFtr.dll in avast! Home and Professional for Windows before 4.8.1356 has unknown impact and local attack vectors.
CVE-2008-6846		0.00	—	0.04	Jul 2, 2009	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.