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HardBreacher PoC Claims Kaspersky Endpoint Security Zero-Day Privilege Escalation on ...
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Fusion42 · 1 September 2026 · Fusion42 review
A public proof of concept claims a zero-day local privilege escalation vulnerability in Kaspersky Endpoint Security on Windows 11, potentially allowing low-privileged users to gain elevated rights and disrupt endpoint protection, though the flaw remains unverified and unconfirmed by Kaspersky.
This Wire brief sits within Fusion42's coverage of Cybersecurity.
◆ ◆ The Wire takeaway
Kaspersky users must urgently verify if their endpoints are vulnerable and prepare to act if official patches do not arrive swiftly. You must prioritise detecting unusual Kaspersky process behaviour and DLL creations to prevent exploitation that could disable your defences.
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1 source · 31 Aug 2026
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