Vendor
Avast
95 known vulnerabilities in products by Avast, 0 of them actively exploited (CISA KEV).
Key figures
95
Vulnerabilities
0
Actively exploited (KEV)
0
Used by ransomware
6
Critical
Vulnerabilities
Actively exploited vulnerabilities (CISA KEV) first, then by priority. Click a column header to re-sort the table.
| High | CVE-2016-3986 | Avast: Memory Corruption | 7.8 | |
| Critical | CVE-2020-23907 | Avast Retdec: Heap-Based Buffer Overflow | 9.8 | |
| Critical | CVE-2020-10867 | Avast Antivirus: security vulnerability | 9.8 | |
| Critical | CVE-2017-8307 | Avast Antivirus: Denial of Service | 9.8 | |
| High | CVE-2020-10863 | Avast Antivirus: security vulnerability | 7.5 | |
| High | CVE-2020-10860 | Avast Antivirus: Denial of Service | 7.5 | |
| High | CVE-2019-18894 | Avast Premium Security: security vulnerability | 7.8 | |
| High | CVE-2020-10868 | Avast Antivirus: security vulnerability | 7.5 | |
| High | CVE-2020-10865 | Avast Antivirus: security vulnerability | 7.5 | |
| High | CVE-2020-10861 | Avast Antivirus: security vulnerability | 7.5 | |
| High | CVE-2017-8308 | Avast Antivirus: security vulnerability | 7.5 | |
| Medium | CVE-2019-18893 | Avast Secure Browser: Cross-Site Scripting (XSS) | 6.1 | |
| Medium | CVE-2020-10864 | Avast Antivirus: security vulnerability | 6.5 | |
| High | CVE-2020-10866 | Avast Antivirus: security vulnerability | 7.5 | |
| Not rated | CVE-2010-3126 | Avast! Free Antivirus: Code Execution | — | |
| Not rated | CVE-2007-2846 | Avast\! Antivirus: Heap-Based Buffer Overflow | — | |
| Critical | CVE-2025-3500 | Integer Overflow in Avast Antiviurs 25.1.981.6 on Windows may result in privilege escalation | 9.0 | |
| Not rated | CVE-2007-2845 | Avast Antivirus: Heap-Based Buffer Overflow | — | |
| High | CVE-2026-6064 | Norton, Avast, and AVG local privilege escalation via link following in Data Shredder | 7.3 | |
| Not rated | CVE-2008-6846 | Avast Antivirus: Stack-Based Buffer Overflow | — | |
| Medium | CVE-2020-9399 | Avast Antivirus For Linux: security vulnerability | 5.5 | |
| High | CVE-2025-71326 | AVAST Antivirus 25.11 Unquoted Service Path Privilege Escalation | 7.8 | |
| Not rated | CVE-2007-1673 | Amavis: Infinite Loop | — | |
| Not rated | CVE-2007-1672 | Avast Antivirus: Infinite Loop | — | |
| High | CVE-2022-4173 | Avast and AVG Antivirus for Windows vulnerable to Privilege Escalation | 7.3 |