Input validation error in Samsung products - CVE-2025-66369

Vulnerability identifier: #VU129389

CSH Severity: Medium

CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green

CVE-ID: CVE-2025-66369

CWE-ID: CWE-20

Exploitation vector: Remote access

Exploit availability: No public exploit available

Vulnerable software:
Exynos 980
Exynos 850
Exynos 2100
Exynos 1280
Exynos 2200
Exynos 1330
Exynos 1380
Exynos 1480
Exynos 2400
Exynos 1580
Exynos W920
Exynos W930
Exynos W1000
Exynos Modem 5123
Exynos Modem 5300
Exynos 990

Software vendor:
Samsung

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to incorrect handling of 5G NR NAS registration accept message. A remote attacker can pass specially crafted input to the application and perform a denial of service (DoS) attack.

Install updates from vendor's website.

• https://semiconductor.samsung.com/content/semiconductor/global/support/quality-support/product-security-updates/cve-2025-66369/