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Ubuntu Security Notices

USN-8968-1: Linux kernel vulnerabilities

It was discovered that the Bluetooth subsystem in the Linux kernel contained a use-after-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2021-3640) Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - F…

Vulnerabilities & Zero-Day Botnet & DDoS Operating Systems
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Industrial Cyber

CISA urges critical infrastructure owners to prioritize OT security, operational continuity, recovery planning in 2026 campaign

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) launched on Monday its 2026 Critical Infrastructure Security and Resilience... The post CISA urges critical infrastructure owners to prioritize OT security, operational continuity, recovery planning in 2026 campaign appeared first on Industrial Cyber.

Malware & Threats Vulnerabilities & Zero-Day Phishing
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Help Net Security

Attackers exploit critical Node-RED flaw to deploy Linux bot and backdoors (CVE-2026-58115)

Attackers are exploiting an authentication flaw (CVE-2026-58115) in Node-RED, a programming tool built into some industrial control products, to install a Linux bot and backdoors on unprotected servers, VulnCheck has found. Node-RED is a flow-based programming tool built on Node.js that lets users wire together event-driven applications in a browser-based editor. It can run on small devices such as the Raspberry Pi o…

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