Google has remediated CVE-2025-48595, a high-severity integer overflow vulnerability within the Android Framework currently leveraged in limited, targeted attacks. The flaw enables local privilege escalation (LPE) by allowing an attacker—who has already achieved initial code execution via a malicious application or browser exploit—to break the Android security sandbox and gain full system or root-level access. With a CVSS score of 8.4, the exploit requires no user interaction for the escalation phase. Due to its active exploitation, CISA has added the vulnerability to its Known Exploited Vulnerabilities (KEV) catalog, mandating federal agency remediation by June 5, 2026.

• Vulnerability Analysis: Integer Overflow Mechanics

  • The flaw stems from integer overflow vulnerabilities present in multiple locations within the Android Framework, the core system layer facilitating app-to-OS communication.
  • Successful exploitation allows an attacker to bypass established security sandboxing, transitioning from restricted application contexts to high-level system permissions.
  • Because the escalation requires no user interaction, the process is silent and occurs automatically once a foothold is established on the device.

• Exploitation Dynamics & Threat Profile

  • Google reports "limited, targeted exploitation," a pattern consistent with commercial spyware vendors or nation-state APTs targeting high-value individuals.
  • The attack is typically chained: an initial vector (such as a drive-by browser exploit or a sideloaded malicious app) provides the initial execution, which CVE-2025-48595 then leverages for full device takeover.
  • Impact includes total compromise of device data, unauthorized surveillance, and the potential for persistent system-level implants.

• Affected Versions & Remediation Timeline

  • The vulnerability impacts devices running Android 14, 15, 16, and 16-qpr2 (Quarterly Platform Release 2).
  • Google issued two patch levels: 2026-06-01 (addressing core OS/Framework fixes) and 2026-06-05 (incorporating kernel and third-party chipset fixes from Qualcomm, MediaTek, and Unisoc).
  • Immediate deployment of the June 2026 Security Bulletin is critical, as the vulnerability is actively being weaponized in the wild.

• Ecosystem Risk & OEM Deployment Gap

  • CVE-2025-48595 was patched alongside 123 other vulnerabilities, 18 of which were rated as "Critical," highlighting a volatile attack surface in the Android Framework.
  • A significant "OEM lag" exists where Google Pixel devices receive patches immediately, while other manufacturers require additional weeks for hardware-specific testing and deployment.
  • This window of exposure leaves enterprise Android fleets on non-Pixel hardware vulnerable to silent privilege escalation until the specific OEM pushes the update.