Not to panic, just a small loophole.
Verify AdvisoryDESCRIPTION:
RedXII1234 has discovered a security issue in AVG Anti-Virus, which potentially can be exploited by malicious, local users to gain escalated privileges.
The security issue is caused due to the File Update functionality assigning insecure permissions to files that have been updated. This can potentially be exploited by malicious users to delete or replace the updated files.
The security issue has been confirmed in version 7.1.375 (Free Edition). Other versions may also be affected.
SOLUTION:
Restrict user access to affected systems.
AVG Antivirus Free Edition 7.x, AVG Antivirus 6.x and AVG Antivirus Professional is affected.