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Ubuntu Security Notices

USN-8913-1: libx11 vulnerabilities

Adam Bedard discovered that libx11 incorrectly handled certain XKB keyboard map replies. If a user were tricked into connecting to a malicious X server, a remote attacker could possibly use this issue to cause libx11 to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2026-88806) It was discovered that libx11 incorrectly handled certain X Input Method (XIM) messages. If a user were tr…

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CSO Online

When prevention fails: Why cyber resilience is the next big test of trust

Imagine arriving at work on a Monday morning to find employees cannot log in, customer service is unavailable, and critical business applications have stopped working. Security alerts are flashing. The IT team is investigating. Business leaders want to know when operations will resume. Then comes the question everyone hopes they never have to ask: Can we recover safely, and how long will it take? Most organizations h…

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