Description
An issue was discovered in Samsung Mobile Processor, Wearable Processor, and Modem Exynos 980, 990, 850, 1080, 2100, 1280, 2200, 1330, 1380, 1480, 2400, 1580, 2500, 9110, W920, W930, W1000, Modem 5123, Modem 5300, and Modem 5400. An out-of-bounds write occurs due to a mismatch between the TP-UDHI and UDL values when processing an SMS TP-UD packet.
Affected products
samsung: exynos 990 firmware; samsung: exynos 990; samsung: exynos 980 firmware; samsung: exynos 980; samsung: exynos 850 firmware; samsung: exynos 850; samsung: exynos 1080 firmware; samsung: exynos 1080; samsung: exynos 1280 firmware; samsung: exynos 1280; samsung: exynos 1330 firmware; samsung: exynos 1330; samsung: exynos 1380 firmware; samsung: exynos 1380; samsung: exynos 1480 firmware
References2
- semiconductor.samsung.com/support/quality-support/product-secur… Vendor Advisory
- semiconductor.samsung.com/support/quality-support/product-secur… Vendor Advisory
Metrics
- CVSS 3.1
-
9.8
CRITICAL
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - EPSS — exploit probability
- 0% percentile: 42 · as of 12 November 2026
- CWE
- CWE-787
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