Avast Antivirus Sandbox Vulnerabilities Allow Privilege Escalation

SAFA researchers uncovered four kernel heap overflow vulnerabilities in Avast Antivirus’s aswSnx.sys driver, designated CVE-2025-13032, affecting versions before 25.3 on Windows. These flaws originate from double-fetch issues in IOCTL handling, allow local attackers to trigger pool overflows for privilege escalation to SYSTEM. The vulnerabilities require sandbox manipulation to access the attack surface, marking a reversal […]

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