Avira Antivirus vulnerabilities
4 known CVE vulnerabilities in Avira Antivirus, translated and rated.
- CVE-2026-6676High
A heap buffer out-of-bounds write vulnerability was discovered in the Avira Antivirus engine when scanning a malformed POSIX tar archive. This could allow local execution of code or denial-of-service of the antivirus engine process. Affects engine builds before 8.3.27.12 on Windows, macOS, and Linux.
- CVE-2025-9033High
A heap buffer out-of-bounds read vulnerability was discovered in the Avira Antivirus engine when scanning a malformed PDF file. This could allow local execution of code or denial-of-service of the antivirus engine process. Affects engine builds before 8.3.70.76 on Windows, macOS, and Linux.
- CVE-2025-9032High
A heap buffer out-of-bounds read vulnerability was discovered in the Avira Antivirus engine when scanning a malformed Windows PE file. This could allow local execution of code or denial-of-service of the antivirus engine process. Affects engine builds before 8.3.70.98 on Windows, macOS, and Linux.
- CVE-2025-14098High
A heap buffer out-of-bounds write vulnerability due to integer overflow was discovered in the Avira Antivirus engine when scanning a malformed MS-DOS executable file. This could allow local execution of code or denial-of-service of the antivirus engine process. Affects engine builds before 8.3.70.104 on Windows, macOS, and Linux.