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The vulnerability in Samsung Exynos processors (including Mobile, Wearable, and Modem variants) stems from a missing length check in the NAS (Network Attached Storage) component. This oversight allows attackers to trigger out-of-bounds writes by supplying maliciously crafted input. When processing data, the system fails to validate buffer boundaries, leading to memory corruption. Exploiting this flaw could enable arbitrary code execution, privilege escalation, or denial of service. The lack of proper input sanitization affects multiple Exynos chipsets, including 980, 990, 2100, 2200, and Modem 5123/5300/5400.
DailyCVE Form:
Platform: Samsung Exynos
Version: Multiple
Vulnerability: OOB Write
Severity: Critical
Date: 2025-05-14
Prediction: Patch by 2025-08-15
What Undercode Say:
$ check_exynos_firmware --model 2200 $ exploit --target nas_module --payload oob_write
How Exploit:
- Craft oversized payload to NAS component.
- Trigger memory corruption via unchecked buffer.
- Execute arbitrary code.
Protection from this CVE:
- Apply Samsung firmware updates.
- Disable vulnerable NAS features.
- Use memory-safe languages.
Impact:
- Remote code execution.
- Device compromise.
- Service disruption.
Sources:
Reported By: nvd.nist.gov
Extra Source Hub:
Undercode
