Input validation error in Samsung products - CVE-2026-48186

Vulnerability identifier: #VU153961

CSH Severity: Medium

CVSS v4: 8.7 [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]

CVE-ID: CVE-2026-48186

CWE-ID: CWE-20

Exploitation vector: Remote access

Exploit availability: No public exploit available

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

The vulnerability exists due to improper handling of messages before AS security activation within the RRC component. A remote attacker can pass specially crafted input to the application and perform a denial of service (DoS) attack.

Exynos 1280
Exynos 2200
Exynos 1330
Exynos 1380
Exynos 1480
Exynos 2400
Exynos 1580
Exynos 2500
Exynos 1680
Exynos W1000
Exynos Modem 5300
Exynos Modem 5400
Exynos Modem 5410

Install updates from vendor's website.

• https://semiconductor.samsung.com/content/semiconductor/global/support/quality-support/product-security-updates/cve-2026-48186/

• Multiple vulnerabilities in Samsung Exynos products