Input validation error in Samsung products - CVE-2026-33971

Vulnerability identifier: #VU153925

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-2026-33971

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 authentication in the LTE RRC component. A remote attacker can trigger a data abort and perform a denial of service (DoS) attack.

Exynos 850
Exynos 2100
Exynos 1280
Exynos 2200
Exynos 1330
Exynos 1380
Exynos 1480
Exynos 2400
Exynos 1580
Exynos 2500
Exynos 1680
Exynos W920
Exynos W930
Exynos W1000
Exynos Modem 5410

Install updates from vendor's website.

• https://semiconductor.samsung.com/content/semiconductor/global/support/quality-support/product-security-updates/cve-2026-33971/

• Multiple vulnerabilities in Samsung Exynos products