CVE-2023-1900: Avira Antivirus

Medium severity, CVSS 5.5. EPSS: 0.3% chance of exploitation in the next 30 days.

A vulnerability within the Avira network protection feature allowed an attacker with local execution rights to cause an overflow. This could corrupt the data on the heap and lead to a denial-of-service situation. Issue was fixed with Endpointprotection.exe version 1.0.2303.633

Affected products

• Avira Antivirus: before 1.0.2303.633 (fixed in 1.0.2303.633)

Published 2023-04-19. Last modified 2026-06-17.