Emir BardakçıThe December 2025 Android security update patches 107 confirmed vulnerabilities, including two high-risk zero-day issues that have already been exploited in targeted attacks. These fixes remain relevant to users on Android 13 through to Android 16, with a specific interest for Xiaomi device owners who see timely security updates month to month through HyperOS. Additional system-related improvements can be viewed on our HyperOS Updates, with ongoing ecosystem coverage of Xiaomi’s platform available from XiaomiTime.
Overview of the December 2025 Security Bulletin
Google’s security bulletin, posted on December 2, details a cumulative patch set for security vulnerabilities affecting the Android framework, system libraries, kernel, and closed-source components. The update patches two high-risk zero-day vulnerabilities, CVE-2025-48633 (information disclosure) and CVE-2025-48572 (privilege escalation), both confirmed to have evidence of real-world exploitation. These cases help point to the regular need for monthly updates across all OEM platforms, including the Xiaomi HyperOS distribution.
Patch Levels and Their Coverage
The bulletin divides patches into two firmware levels. The 2025-12-01 patch level addresses vulnerabilities in the Android framework and system, totaling 51 fixes. The 2025-12-05 patch level extends the above protection with 56 additional patches that affect the Linux kernel and closed-source vendor-specific modules. These collectively ensure a common base of security for the various manufacturers when they integrate HyperOS along with their respective value additions.
Zero-Day Vulnerabilities Already Exploited
Google has confirmed that the two vulnerabilities highlighted seem to have been exploited in “limited, targeted exploitation.” While technical details are not available, there are precedents to suggest that similar exploits have been deployed in corporate spyware to infect high-value targets. Devices running Android 13 to 16 are in the range of the affected ones, and immediate firmware updates are a sure way to keep them safe. Xiaomi devices running HyperOS will receive these patches through standard OTA delivery schedules that ensure ongoing protection across compatible models.
Qualcomm, MediaTek, and Samsung Component Fixes
Beyond Google’s patches, the December bulletin also includes updates from chipset partners. Qualcomm addressed two critical vulnerabilities—CVE-2025-47319 and CVE-2025-47372—affecting its proprietary modules. Complementary security notes were released by MediaTek, Samsung, and other vendors for their respective silicon. Xiaomi devices running on Snapdragon or MediaTek platforms will get the enhancements through the HyperOS-based security patches, ensuring component-level hardening in line with industry expectations.
What This Means for Xiaomi Users
As with any Xiaomi user, the December 2025 bulletin highlights how Xiaomi supports Google’s security framework while adding OEM-specific safeguards. HyperOS updates often integrate all Google-originating security fixes, combined with Xiaomi’s platform optimizations and enhanced privacy tools. Users are encouraged to keep up with the latest systems via OTA updates or, when applicable, through our ecosystem tools like HyperOSUpdates.com. Manual updaters can also use our MemeOS Enhancer application from the Play Store, which unlocks wider update accessibility along with a number of hidden system-level controls.
