CVE-2018-21089
Description
An issue was discovered on Samsung mobile devices with N(7.x) (MT6755/MT6757 Mediatek models) software. Bootloader has an integer overflow that leads to arbitrary code execution via the download offset control. The Samsung ID is SVE-2017-10732 (January 2018).
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Integer overflow in Samsung bootloader on Mediatek models allows arbitrary code execution via download offset control.
Vulnerability
An integer overflow vulnerability exists in the bootloader of Samsung mobile devices running Android N (7.x) on Mediatek MT6755 and MT6757 chipsets. The overflow occurs when processing the download offset control, allowing an attacker to corrupt memory.
Exploitation
An attacker can trigger the integer overflow by supplying a crafted download offset value during the bootloader's download mode. The exact attack vector is not detailed, but it likely requires physical or USB access to the device in download mode.
Impact
Successful exploitation leads to arbitrary code execution within the bootloader context, which can result in full compromise of the device's firmware and data.
Mitigation
Samsung addressed this issue in a security update released in January 2018, identified as SVE-2017-10732. Users should ensure their devices are updated to the latest firmware version to mitigate this vulnerability.
AI Insight generated on May 26, 2026. Synthesized from this CVE's description and the cited reference URLs; citations are validated against the source bundle.
Affected products
2- Samsung/mobile devicesdescription
- Range: 7.x
Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
1- security.samsungmobile.com/securityUpdate.smsbmitrex_refsource_CONFIRM
News mentions
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