Dell Shares Plunge 1.79 on Critical Security Flaws Trading Volume Ranks 122nd Amid ReVault Vulnerability Crisis

On August 6, 2025, Dell Technologies (DELL) closed with a 1.79% decline, trading at $0.80 billion in volume, ranking 122nd in market activity. The drop followed revelations of critical security vulnerabilities in Broadcom BCM5820X chips used in over 100 Dell laptop models, including Precision, Latitude, and Pro series. These flaws, collectively labeled ReVault, could enable attackers to bypass Windows login systems, steal biometric data, and execute malicious code via firmware manipulation. Cisco Talos identified five vulnerabilities (CVE-2025-24311 to CVE-2025-24919) affecting ControlVault3 firmware, which stores passwords and security credentials.

Dell disclosed the issues on June 13 and has since issued patches through its security advisory DSA-2025-053. The company emphasized rapid collaboration with firmware providers and urged users to apply updates via Dell Command Center or direct downloads. Researchers highlighted risks for organizations in cybersecurity and government sectors, where strict login protocols increase reliance on affected systems. Physical access to devices could allow attackers to tamper with firmware without needing encryption passwords, potentially enabling persistent implants undetectable by standard security tools. Despite no confirmed real-world exploitation, experts recommend immediate patching and regular password rotation to mitigate risks.

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