Out-of-bounds read in Samsung products - CVE-2025-27891

Vulnerability identifier: #VU108763

CSH Severity: High

CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N]

CVE-ID: CVE-2025-27891

CWE-ID: CWE-125

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to a boundary condition. A remote attacker can trigger an out-of-bounds read error and read contents of memory on the system.

Exynos 1380
Exynos Modem 5400
Exynos Modem 5300
Exynos Modem 5123
Exynos W1000
Exynos W930
Exynos W920
Exynos 2400
Exynos 1480
Exynos 980
Exynos 1330
Exynos 2200
Exynos 1280
Exynos 2100
Exynos 1080
Exynos 850
Exynos 990

Install updates from vendor's website.

• https://semiconductor.samsung.com/content/semiconductor/global/support/quality-support/product-security-updates/cve-2025-27891/

• Multiple vulnerabilities in Samsung products