
CVE-2020-20118
https://notcve.org/view.php?id=CVE-2020-20118
11 Jul 2023 — 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. • http://avast.com • CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') •

CVE-2023-1587
https://notcve.org/view.php?id=CVE-2023-1587
19 Apr 2023 — 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 • https://support.norton.com/sp/static/external/tools/security-advisories.html • CWE-476: NULL Pointer Dereference •

CVE-2023-1586
https://notcve.org/view.php?id=CVE-2023-1586
19 Apr 2023 — 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 • https://support.norton.com/sp/static/external/tools/security-advisories.html • CWE-367: Time-of-check Time-of-use (TOCTOU) Race Condition •

CVE-2023-1585
https://notcve.org/view.php?id=CVE-2023-1585
19 Apr 2023 — Avast and AVG Antivirus for Windows were susceptible to a Time-of-check/Time-of-use (TOCTOU) vulnerability in the Quarantine process, leading to arbitrary file/directory deletion. The issue was fixed with Avast and AVG Antivirus version 22.11 and virus definitions from 14 February 2023 or later. • https://support.norton.com/sp/static/external/tools/security-advisories.html • CWE-367: Time-of-check Time-of-use (TOCTOU) Race Condition •

CVE-2022-4294 – Norton, Avira, Avast and AVG Antivirus for Windows Privilege Escalation
https://notcve.org/view.php?id=CVE-2022-4294
10 Jan 2023 — 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. • https://support.norton.com/sp/static/external/tools/security-advisories.html • CWE-269: Improper Privilege Management •

CVE-2022-4173 – Avast and AVG Antivirus for Windows vulnerable to Privilege Escalation
https://notcve.org/view.php?id=CVE-2022-4173
05 Dec 2022 — 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. Una vulnerabilidad dentro de la funcionalidad de eliminación de malware de Avast y AVG Antivirus permitió a un atacante con acceso de escritura al sistema de archivos aumentar sus privilegios en ciertos escenarios. El problema se solucionó con Avast y AVG An... • https://support.norton.com/sp/static/external/tools/security-advisories.html • CWE-269: Improper Privilege Management •

CVE-2021-45339
https://notcve.org/view.php?id=CVE-2021-45339
27 Dec 2021 — 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. Una vulnerabilidad de escalada de privilegios en Avast Antivirus versiones anteriores a 20.4, permite a un usuario local alcanzar privilegios elevados al "vaciar" los procesos confiables, lo que podría conllevar a una omisión de la autodefensa de Avast • https://github.com/the-deniss/Vulnerability-Disclosures/tree/main/CVE-2021-AVST0 • CWE-863: Incorrect Authorization •

CVE-2021-45338
https://notcve.org/view.php?id=CVE-2021-45338
27 Dec 2021 — 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. Múltiples vulnerabilidades de escalada de privilegios en Avast Antivirus versiones anteriores a 20.4, permiten a un usuario local alcanzar privilegios elevados al llamar a métodos internos innecesariamente potentes del s... • https://github.com/the-deniss/Vulnerability-Disclosures/tree/main/CVE-2021-AVST1.1 •

CVE-2021-45337
https://notcve.org/view.php?id=CVE-2021-45337
27 Dec 2021 — 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. Una vulnerabilidad de escalada de privilegios en el controlador de Autodefensa de Avast Antivirus versiones anteriores a 20.8, permite a un usuario local con privilegios SYSTEM alcanzar privilegios elevados al "vaciar" el proceso wsc_proxy.exe, que... • https://github.com/the-deniss/Vulnerability-Disclosures/tree/main/CVE-2021-AVST3%20%26%20CVE-2021-AVST4%20%26%20CVE-2021-AVST5 •

CVE-2021-45336
https://notcve.org/view.php?id=CVE-2021-45336
27 Dec 2021 — 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. Una vulnerabilidad de escalada de privilegios en el componente Sandbox de Avast Antivirus versiones anteriores a 20.4, permite a un código local del sandbox alcanzar privilegios elevados al usar las interfaces IPC del sistema, lo que podría conllevar a una salid... • https://github.com/the-deniss/Vulnerability-Disclosures/tree/main/CVE-2021-AVST3%20%26%20CVE-2021-AVST4%20%26%20CVE-2021-AVST5 •