CVE-2025-27807
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BaseFortify

Publication date: 2026-01-05

Last updated on: 2026-01-09

Assigner: MITRE

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.
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Meta Information
Published
2026-01-05
Last Modified
2026-01-09
Generated
2026-06-16
AI Q&A
2026-01-05
EPSS Evaluated
2026-06-15
NVD
CVE-2025-27807
EUVD
EUVD-2026-0807
Affected Vendors & Products
Showing 38 associated CPEs
Vendor Product Version / Range
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_2100_firmware *
samsung exynos_2100 *
samsung exynos_1280_firmware *
samsung exynos_1280 *
samsung exynos_2200_firmware *
samsung exynos_2200 *
samsung exynos_1330_firmware *
samsung exynos_1330 *
samsung exynos_1380_firmware *
samsung exynos_1380 *
samsung exynos_1480_firmware *
samsung exynos_1480 *
samsung exynos_1580_firmware *
samsung exynos_1580 *
samsung exynos_2400_firmware *
samsung exynos_2400 *
samsung exynos_9110_firmware *
samsung exynos_9110 *
samsung exynos_w930_firmware *
samsung exynos_w930 *
samsung exynos_w920_firmware *
samsung exynos_w920 *
samsung exynos_w1000_firmware *
samsung exynos_w1000 *
samsung modem_5123_firmware *
samsung modem_5123 *
samsung modem_5300_firmware *
samsung modem_5300 *
samsung modem_5400_firmware *
samsung modem_5400 *
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-787 The product writes data past the end, or before the beginning, of the intended buffer.
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Executive Summary

CVE-2025-27807 is a high-severity vulnerability in multiple Samsung Exynos processors and modems. It occurs in the NAS (Non-Access Stratum) component due to a missing length check, which allows out-of-bounds write operations via malformed NAS packets. This means attackers can write data beyond the intended buffer limits, potentially causing memory corruption and enabling further exploitation. [1]

Impact Analysis

This vulnerability can lead to memory corruption on affected Samsung Exynos processors and modems. An attacker exploiting this flaw could potentially execute arbitrary code, cause system crashes, or disrupt device functionality, which may compromise device security and stability. [1]

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