CVE-2026-80301: vulnerability in Gen Digital Avast Antivirus, Avast One, Avast…
Avast sandbox escape via unpreserved COM pathway through Task Scheduler
Published
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0Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Track
Improper isolation in the Avast sandbox on Windows allows a local, low-privileged attacker executing inside the sandbox to access COM interfaces to the Task Scheduler service, escape containment, and execute code with elevated privileges outside the sandbox.
The sandbox virtualizes file system and registry access but does not adequately restrict COM interface access to Task Scheduler. A process inside the sandbox can instantiate COM objects bound to Task Scheduler functionality and invoke methods to schedule and execute tasks on the host system. The Task Scheduler COM pathway is not blocked by the sandbox policy, allowing arbitrary code execution in the host security context.
This escape vector bypasses the sandbox's intended process and file isolation boundaries and can be chained with other host-level privilege escalation techniques.
Affected products
Gen Digital · Avast Antivirus, Avast One, Avast Premium Security, Avast UltimateGen Digital · AVG Antivirus Free, AVG Internet Security, AVG UltimateGen Digital · Norton Antivirus Plus, Norton 360 Standard, Norton 360 Deluxe, Norton 360 AdvancedRelated CVEs — Gen Digital Avast Antivirus, Avast One, Avast…
In the same product, most dangerous first.
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