🔴 Critical: CISA alerts of active exploitation of three Linux kernel flaws
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The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has issued a warning that threat actors are actively exploiting three Linux kernel vulnerabilities, one of which carries a critical severity rating. The agency's alert indicates these flaws are being used in real-world attacks, making timely patching a priority for affected systems.
Organizations running Linux-based infrastructure should treat this as an urgent matter. CISA's guidance in such cases typically involves applying vendor-supplied updates as soon as possible, since active exploitation means defenders may already be racing against ongoing intrusion attempts. Administrators are advised to:
- Identify any systems running affected Linux kernel versions
- Apply available kernel security updates from their distribution vendor
- Monitor for signs of compromise on systems that may have been exposed
- Review CISA's alert for the specific technical details and any listed mitigations
Given that one flaw is rated critical and all three are under active exploitation, delaying remediation carries meaningful risk.
Source: BleepingComputer
Has your organization already patched its Linux kernel, or are you still assessing exposure?
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