Out-of-bounds write in Samsung products - CVE-2025-27807

Vulnerability identifier: #VU120982

CSH Severity: High

CVSS v4: 9.3 [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]

CVE-ID: CVE-2025-27807

CWE-ID: CWE-787

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to compromise vulnerable system.

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

Exynos 1480
Exynos Modem 5400
Exynos Modem 5300
Exynos Modem 5123
Exynos W1000
Exynos W930
Exynos W920
Exynos 9110
Exynos 1580
Exynos 2400
Exynos 980
Exynos 1380
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-2025-27807/

• Multiple vulnerabilities in Samsung products