CVE-2025-27807

CRITICAL

Samsung Exynos and Modem Firmware - Out-of-bounds Write via Malformed NAS Packets

Title source: llm
STIX 2.1

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, 9110, W920, W930, W1000, Modem 5123, Modem 5300, Modem 5400. The lack of a length check leads to out-of-bounds writes via malformed NAS packets.

References (2)

Core 2

Scores

CVSS v3 9.1
EPSS 0.0008
EPSS Percentile 22.7%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact partial

Details

CWE
CWE-787
Status published
Products (19)
samsung/exynos_1080_firmware
samsung/exynos_1280_firmware
samsung/exynos_1330_firmware
samsung/exynos_1380_firmware
samsung/exynos_1480_firmware
samsung/exynos_1580_firmware
samsung/exynos_2100_firmware
samsung/exynos_2200_firmware
samsung/exynos_2400_firmware
samsung/exynos_850_firmware
... and 9 more
Published Jan 05, 2026
Tracked Since Feb 18, 2026