Product by Avast
Avast Antivirus
42 known vulnerabilities in Avast Antivirus (Avast), 0 of them actively exploited (CISA KEV).
Key figures
42
Vulnerabilities
0
Actively exploited (KEV)
0
Used by ransomware
4
Critical
Vulnerabilities
Actively exploited vulnerabilities (CISA KEV) first, then by priority. Click a column header to re-sort the table.
| 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-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-2020-10864 | Avast Antivirus: security vulnerability | 6.5 | |
| High | CVE-2020-10866 | Avast Antivirus: security vulnerability | 7.5 | |
| Critical | CVE-2025-3500 | Integer Overflow in Avast Antiviurs 25.1.981.6 on Windows may result in privilege escalation | 9.0 | |
| High | CVE-2026-6064 | Norton, Avast, and AVG local privilege escalation via link following in Data Shredder | 7.3 | |
| High | CVE-2025-7009 | Avast antivirus heap buffer OOB read when scanning a malformed PE file | 7.8 | |
| High | CVE-2025-7004 | Avast antivirus heap buffer OOB write when scanning a malformed PE file | 7.8 | |
| High | CVE-2025-7011 | Avast antivirus heap OOB when scanning a malformed zip file | 7.8 | |
| High | CVE-2025-7008 | Avast antivirus heap buffer OOB read when scanning a malformed PE file | 7.8 | |
| Medium | CVE-2019-18653 | Avast Antivirus: Cross-Site Scripting (XSS) | 6.1 | |
| High | CVE-2021-45336 | Avast Antivirus: Privilege Escalation | 8.8 | |
| High | CVE-2021-45337 | Avast Antivirus: Privilege Escalation | 8.8 | |
| High | CVE-2019-17093 | Avast Antivirus: security vulnerability | 7.8 | |
| High | CVE-2020-10862 | Avast Antivirus: Privilege Escalation | 7.8 | |
| Critical | CVE-2025-13032 | Avast (Free/Premiium/Ultimeat) Antivirus: Time-of-check Time-of-use (TOCTOU) Race Condition | 7.8 | |
| High | CVE-2021-45335 | Avast Antivirus: security vulnerability | 8.8 | |
| High | CVE-2025-7007 | Null pointer dereference in Avast Antivirus on macOS (16.0.0) or Linux (3.0.3) | 7.5 | |
| High | CVE-2021-45338 | Avast Antivirus: Privilege Escalation | 7.8 |