CISA Flags Samsung Mobile Devices for Critical Exploited Vulnerability (CVE-2025-21042)
In November 2025, CISA added CVE-2025-21042, an out-of-bounds write vulnerability affecting Samsung Mobile Devices, to its Known Exploited Vulnerabilities (KEV) Catalog following active exploitation in the wild. Threat actors have leveraged this flaw to gain unauthorized control over affected devices, potentially allowing them to execute arbitrary code, escalate privileges, and compromise sensitive user data. The vulnerability poses significant risks to both federal agencies and commercial enterprises, prompting CISA to mandate remediation by federal civilian agencies under Binding Operational Directive (BOD) 22-01. Failure to remediate exposes organizations to data breaches and operational disruption. This incident highlights a broader wave of targeted exploits against widely used mobile platforms, illustrating attackers’ ongoing shift toward mobile devices as primary entry vectors. With regulatory attention intensifying, the urgency for rapid vulnerability management and proactive defense measures is escalated for all sectors.
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