SB2026070757 - Multiple vulnerabilities in Samsung Exynos products
Published: July 7, 2026
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 5 vulnerabilities.
1) Input validation error (CVE-ID: CVE-2025-66366)
CWE-ID: CWE-20 - Improper input validation
CVSSv4: 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
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to incorrect handling of unauthenticated downlink RRC Setup messages. A remote attacker can pass specially crafted input to the application and perform a denial of service (DoS) attack.
2) Out-of-bounds read (CVE-ID: CVE-2026-33962)
CWE-ID: CWE-125 - Out-of-bounds read
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to a boundary condition. A remote attacker can send a specially crafted netlink command, trigger an out-of-bounds read error and read contents of memory on the system.
3) Input validation error (CVE-ID: CVE-2026-33957)
CWE-ID: CWE-20 - Improper input validation
CVSSv4: 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
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to requesting oversized shared memory from the device leads to irregular memory access operations. A remote attacker can perform a denial of service (DoS) attack.
4) Input validation error (CVE-ID: CVE-2026-23792)
CWE-ID: CWE-20 - Improper input validation
CVSSv4: 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
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to incorrect handling of unauthenticated downlink RRC Setup messages. A remote attacker can pass specially crafted input to the application and perform a denial of service (DoS) attack.
5) Input validation error (CVE-ID: CVE-2025-66367)
CWE-ID: CWE-20 - Improper input validation
CVSSv4: 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
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to improper handling of NAS DLTransport messages. A remote attacker can pass specially crafted input to the application and perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.
References
- https://semiconductor.samsung.com/content/semiconductor/global/support/quality-support/product-security-updates/cve-2025-66366/
- https://semiconductor.samsung.com/content/semiconductor/global/support/quality-support/product-security-updates/cve-2026-33962/
- https://semiconductor.samsung.com/content/semiconductor/global/support/quality-support/product-security-updates/cve-2026-33957/
- https://semiconductor.samsung.com/content/semiconductor/global/support/quality-support/product-security-updates/cve-2026-23792/
- https://semiconductor.samsung.com/content/semiconductor/global/support/quality-support/product-security-updates/cve-2025-66367/