What is CVE-2025-53966?

CVE-2025-53966 is a high-severity vulnerability in Samsung Exynos_1380, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 8.4/10. Published 2026-01-05.

How severe is CVE-2025-53966?

High severity. CVSS v3 base score is 8.4 out of 10.

Buffer overflow in Samsung Exynos_1380

CVE-2025-53966

An issue was discovered in Samsung Mobile Processor Exynos 1380, 1480, 2400, and 1580. Incorrect Handling of the NL80211 vendor command leads to a buffer overflow during handling of an IOCTL message.

Vulnerability class: Buffer Overflow

EPSS: 0.001 (3.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.4 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

CWE-120 — Buffer Copy without Checking Size of Input (Classic Buffer Overflow)

References

cve@mitre.org (Vendor Advisory)
cve@mitre.org (Vendor Advisory)

Frequently asked questions

What is CVE-2025-53966?: CVE-2025-53966 is a high-severity vulnerability in Samsung Exynos_1380, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 8.4/10. Published 2026-01-05.
How severe is CVE-2025-53966?: High severity. CVSS v3 base score is 8.4 out of 10.