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Xiaomi HyperOS 4 September Patch Fixes Critical RCE Flaw

Simon Ellis 0 comments 2 min read

Xiaomi HyperOS 4 September 2026 update fixes 180 vulnerabilities, including a critical RCE flaw, across Xiaomi 15, Redmi, and POCO devices.

Xiaomi HyperOS 4 September Patch Fixes Critical RCE Flaw
ANDROID

Xiaomi is rolling out the September 2026 security update to its smartphone and tablet lineup, a move that directly impacts user privacy and device stability. This patch arrives as part of the broader HyperOS 4 release, ensuring that critical security holes are closed before they can be exploited by malicious actors. Users should apply this update immediately to protect their personal data from known vulnerabilities in the Android ecosystem.

Xiaomi rolls out HyperOS 4 security patch to flagships and tablets

The update targets a wide range of devices, including the Xiaomi 15, Xiaomi 15 Ultra, Xiaomi 17T, and Xiaomi 17T Pro. It also covers the Xiaomi MIX FLIP 2 and the Xiaomi Pad 7S Pro 12.5. Budget and mid-range options like the Redmi K80, Redmi K80 Pro, and Redmi K100 Pro Max are included in the rollout. POCO devices, specifically the F7 Pro, F7 Ultra, and F9 Ultra, will also receive the security patch.

  • Patch Level: September 2026
  • OS Version: HyperOS 4
  • Vulnerabilities Fixed: 180 total (95 core/framework, 85 hardware-specific)
  • Critical Fix: Remote Code Execution (RCE) in system component
  • Affected Hardware Vendors: Qualcomm, Arm, MediaTek, Imagination Technologies, Uisoc

The patch resolves 180 vulnerabilities across the Android ecosystem, with 95 fixes targeting the core system and framework. An additional 85 security fixes address hardware-specific components, ensuring that driver-level issues are also mitigated. The most critical fix resolves a security flaw in the system component that allows for Remote Code Execution (RCE). This specific vulnerability could have allowed attackers to gain full control over the device.

Hardware fixes cover driver patches for Qualcomm, Arm, MediaTek, Imagination Technologies, and Uisoc components. The update is available in Global, EEA, and China regions, with specific build numbers for each market. Global users will receive build OS4.0.0.7.XOCMIXM, while EEA users get OS4.0.0.9.XOCEUXM. China users will receive build OS4.0.0.10.XOHCNXM. We touched on Xiaomi June 2026 Security Patch Rollout in our earlier Xiaomi coverage, but this September update brings more comprehensive hardware-level protections.

The update addresses 180 vulnerabilities, including a critical Remote Code Execution flaw, to improve the security of Xiaomi's HyperOS ecosystem. By addressing both software and hardware vulnerabilities, Xiaomi is ensuring that its devices remain secure against emerging threats. Users can expect improved stability and protection for their devices following the installation of this update.

Source: GIZMOCHINA

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