CISA has added an actively exploited Android Framework vulnerability, tracked as CVE-2025-48595, to its Known Exploited Vulnerabilities (KEV) catalog and set a remediation deadline of June 5, 2026.
The agency’s alert signals that this flaw is being used in real-world attacks and requires immediate attention from organizations that manage Android devices or allow bring-your-own-device (BYOD) access.
CVE-2025-48595 is an integer overflow vulnerability (CWE-190) in the Android Framework. The Android Framework mediates core system services and app interactions.
An integer overflow here means an arithmetic operation produces a value larger than the data type can represent, which can corrupt memory or alter control flow.
In this case, successful exploitation enables local privilege escalation, allowing code execution with elevated, system-level privileges.
Because the flaw is exploitable from a local context, a malicious app or an attacker with limited access can bypass Android security controls and escalate privileges.
With system-level rights an attacker can manipulate system processes, access or exfiltrate sensitive data, install persistent malware, or create footholds for further lateral compromise within enterprise environments. CISA confirms active exploitation in the wild, raising the urgency for patching and detection.
Android’s broad deployment across consumer and enterprise devices, plus common BYOD policies, increases exposure. Devices that are not regularly updated or lack centralized management are particularly at risk.
The active exploitation status makes CVE-2025-48595 a higher operational priority: organizations using Android devices for business functions should treat this as an immediate security incident.
Mitigation
- Patch immediately: Apply vendor-provided patches or updates as soon as they become available. Under Binding Operational Directive (BOD) 22-01, federal agencies must remediate KEV-listed vulnerabilities within specified timelines; other organizations should follow the same urgency.
- Block untrusted apps: Restrict installation of apps from unknown sources and enforce app-store only installs where possible.
- Use MDM and MTD: Enforce device configuration and security policies through mobile device management (MDM); add mobile threat defense (MTD) to detect malicious apps and behaviors.
- Monitor for anomalies: Increase monitoring for abnormal device activity, unexpected privilege changes, suspicious network connections, and unusual process behavior.
- Isolate or retire vulnerable devices: If fixes are unavailable, remove affected devices from sensitive networks or discontinue their use until patched.
Detection
- Look for privilege escalation indicators, unexpected system service restarts, new system apps or processes, and attempts to access restricted files.
- Correlate device telemetry with endpoint detection logs and network indicators for signs of data exfiltration or command-and-control communications.
CVE-2025-48595 is a high-priority Android Framework integer overflow that enables local privilege escalation and is confirmed to be actively exploited.
Apply vendor patches immediately, enforce MDM/MTD controls, restrict untrusted app installations, and heighten monitoring. These steps are essential to limit exposure and prevent attacker-driven system compromise.
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