CVE-2025-27891

CRITICAL
2025-05-14 [email protected]
9.1
CVSS 3.1
Share

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
High

Lifecycle Timeline

2
Analysis Generated
Mar 28, 2026 - 18:41 vuln.today
CVE Published
May 14, 2025 - 21:15 nvd
CRITICAL 9.1

Tags

Information Disclosure Buffer Overflow Samsung Exynos 980 Firmware Exynos 990 Firmware Exynos 850 Firmware Exynos 1080 Firmware Exynos 2100 Firmware Exynos 1280 Firmware Exynos 2200 Firmware Exynos 1330 Firmware Exynos 1380 Firmware Exynos 1480 Firmware Exynos 2400 Firmware Exynos W920 Firmware Exynos W930 Firmware Exynos W1000 Firmware Exynos Modem 5123 Firmware Exynos Modem 5300 Firmware Exynos Modem 5400 Firmware

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

Analysis

An issue was discovered in Samsung Mobile Processor, Wearable Processor, and Modem Exynos 980, 990, 850, 1080, 2100, 1280, 2200, 1330, 1380, 1480, 2400, W920, W930, W1000, Modem 5123, Modem 5300,. Rated critical severity (CVSS 9.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Technical Context

This vulnerability is classified as Out-of-bounds Read (CWE-125), which allows attackers to read data from memory outside the intended buffer boundaries. An issue was discovered in Samsung Mobile Processor, Wearable Processor, and Modem Exynos 980, 990, 850, 1080, 2100, 1280, 2200, 1330, 1380, 1480, 2400, W920, W930, W1000, Modem 5123, Modem 5300, Modem 5400. The lack of a length check leads to out-of-bounds reads via malformed NAS packets. Affected products include: Samsung Exynos 980 Firmware, Samsung Exynos 990 Firmware, Samsung Exynos 850 Firmware, Samsung Exynos 1080 Firmware, Samsung Exynos 2100 Firmware.

Affected Products

Samsung Exynos 980 Firmware, Samsung Exynos 990 Firmware, Samsung Exynos 850 Firmware, Samsung Exynos 1080 Firmware, Samsung Exynos 2100 Firmware.

Remediation

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Validate array indices and buffer lengths. Use memory-safe languages. Enable AddressSanitizer during testing.

Priority Score

46
Low Medium High Critical
KEV: 0
EPSS: +0.4
CVSS: +46
POC: 0

Share

CVE-2025-27891 vulnerability details – vuln.today
Back

This site uses cookies essential for authentication and security. No tracking or analytics cookies are used. Privacy Policy