Out-of-bounds write in Samsung products - CVE-2025-27374

Vulnerability identifier: #VU117919

CSH Severity: High

CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber

CVE-ID: CVE-2025-27374

CWE-ID: CWE-787

Exploitation vector: Remote access

Exploit availability: No public exploit available

Vendor: Samsung

Affected software:
Exynos 9820
Exynos 9825
Exynos 990
Exynos 980
Exynos 850
Exynos 1080
Exynos 1280
Exynos 2200
Exynos 1330
Exynos 1380
Exynos 1480
Exynos 2400

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a boundary error when processing untrusted input within the Secure boot component. A remote attacker can trigger an out-of-bounds write and execute arbitrary code on the target system.

Install updates from vendor's website.

• https://semiconductor.samsung.com/content/semiconductor/global/support/quality-support/product-security-updates/cve-2025-27374/