CVE-2025-48641: 
NixOS vulnerability analysis and mitigation

CVE-2025-48641 is a use-after-free vulnerability caused by a race condition in multiple functions of Nfc.h in the Android NFC subsystem, enabling local privilege escalation. It affects Google Android versions 14.0, 15.0, and 16.0 (including QPR2 variants). No additional execution privileges are required, and user interaction is not needed for exploitation. It carries a CVSS v3.1 base score of 7.0 (High) and was publicly disclosed on March 2, 2026, via Google's Android Security Bulletin (Android Bulletin, Red Hat CVE).

The vulnerability is classified as CWE-362 (Concurrent Execution using Shared Resource with Improper Synchronization / Race Condition). In multiple functions within Nfc.h, a race condition allows a freed memory region to be accessed again (use-after-free), which can be leveraged by a local attacker with low privileges to corrupt memory and escalate privileges. The attack vector is local, requires low privileges, and has high attack complexity due to the timing-dependent nature of race condition exploitation. No public proof-of-concept or technical write-up has been identified at this time (Android Bulletin, Feedly).

Successful exploitation allows a local attacker with low privileges to escalate to higher system privileges on the affected Android device, with high impact to confidentiality, integrity, and availability. An attacker could gain elevated access to sensitive data, modify system state, or cause denial of service on the NFC subsystem and potentially broader system components. The scope is limited to the affected device (unchanged scope), but privilege escalation could enable further compromise of device resources and installed applications (Android Bulletin).

There is no known public proof-of-concept exploit and no evidence of active in-the-wild exploitation as of the time of disclosure. The EPSS score is approximately 0.009% (0.000090), indicating a very low probability of exploitation in the near term. The vulnerability is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog. No threat actor attribution has been reported (Feedly, Android Bulletin).

Google released a patch addressing CVE-2025-48641 in the Android Security Bulletin dated 2026-03-01, covering Android versions 14.0, 15.0, and 16.0. Users and administrators should apply the March 2026 Android security update (patch level 2026-03-01 or later) to all affected devices as soon as possible. Prioritize patching devices where users have local access or where the NFC subsystem is actively in use. No configuration-based workaround has been officially documented; disabling NFC on devices where it is not required may reduce the attack surface as an interim measure (Android Bulletin).

The CIS (Center for Internet Security) published an advisory noting multiple vulnerabilities in Google Android OS that could allow for remote code execution and privilege escalation, referencing the March 2026 bulletin that includes CVE-2025-48641 (CIS Advisory). Samsung also issued a February 2026 update that patches related Android vulnerabilities (SammyFans). No notable independent researcher commentary or significant social media discussion specific to this CVE has been identified.