Quick Facts
- Category: Cybersecurity
- Published: 2026-05-05 01:22:52
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Exploitation Underway as CISA Adds 'Copy Fail' to KEV List
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has added a critical Linux kernel vulnerability nicknamed 'Copy Fail' to its Known Exploited Vulnerabilities (KEV) catalog after Microsoft confirmed limited exploitation in the wild. The flaw, tracked as CVE-2024-XXXX (reserved), allows an attacker with local access to escalate privileges or potentially execute arbitrary code.
According to a Microsoft Security Response Center official who spoke on condition of anonymity, “The exploits we observed were predominantly tied to proof-of-concept testing, but the recent spike in activity suggests threat actors are preparing for widespread use.” CISA’s KEV inclusion mandates all federal agencies to patch the vulnerability by April 18, 2024, under Binding Operational Directive 22-01.
