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Critical vulnerability dubbed 'SMS of Death' threatens millions of Android devices

A dangerous security flaw in Android smartphones can cause devices to malfunction and crash calling services without warning. Security researchers have identified the vulnerability, known as 'SMS of Death,' as a significant threat to millions of users across the region.

LSN India · 31 October 2026

Critical vulnerability dubbed 'SMS of Death' threatens millions of Android devices

A critical vulnerability affecting Android smartphones has been discovered that can render devices inoperable and disrupt calling functionality. The flaw, nicknamed 'SMS of Death,' exploits a weakness in how certain Android devices process incoming messages, causing unexpected system failures.

The vulnerability operates by sending specially crafted SMS messages that trigger a crash in the device's calling services and core functions. Once triggered, affected devices may become temporarily or permanently unresponsive, rendering them unusable for basic communication purposes.

Security experts warn that the flaw poses a widespread risk to millions of Android users, particularly in South Asia where smartphone penetration has grown significantly. The vulnerability affects multiple device models and Android versions, though specific details about which devices are most vulnerable remain under investigation.

Android device manufacturers and telecommunications providers are reportedly working to develop patches and mitigations. Users are advised to exercise caution when receiving messages from unknown sources and consider enabling additional security features on their devices. Security researchers are also investigating whether the vulnerability can be weaponized for larger-scale attacks targeting device networks and communication infrastructure.