EUVD-2026-9822

Avira Internet Security contains a time-of-check time-of-use TOCTOU vulnerability in the Optimizer component. A privileged service running as SYSTEM identifies directories for cleanup during a scan phase and subsequently deletes them during a separate cleanup phase without revalidating the target...

CVE-2026-27750

Avira Internet Security is affected by a TOCTOU vulnerability in the Optimizer component. A privileged service running as SYSTEM identifies directories for cleanup during a scan phase and later deletes them in a separate cleanup phase without revalidating the target path. An local attacker could ...

CVE-2026-27750 Avira Internet Security Optimizer TOCTOU

Avira Internet Security contains a time-of-check time-of-use TOCTOU vulnerability in the Optimizer component. A privileged service running as SYSTEM identifies directories for cleanup during a scan phase and subsequently deletes them during a separate cleanup phase without revalidating the target...