Infinite loop in Samsung products - CVE-2026-33969

Vulnerability identifier: #VU153924

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-2026-33969

CWE-ID: CWE-835

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 infinite loop in the NAS Authentication Request message decoding procedure. A remote attacker can consume all available system resources and cause denial of service conditions.

Exynos 2500
Exynos Modem 5410
Exynos Modem 5400
Exynos Modem 5300
Exynos Modem 5123
Exynos W1000
Exynos W930
Exynos W920
Exynos 9110
Exynos 1680
Exynos 850
Exynos 1580
Exynos 2400
Exynos 1480
Exynos 1380
Exynos 1330
Exynos 2200
Exynos 1280
Exynos 2100

Install updates from vendor's website.

• https://semiconductor.samsung.com/content/semiconductor/global/support/quality-support/product-security-updates/cve-2026-33969/

• Multiple vulnerabilities in Samsung Exynos products