What is CVE-2025-23103?

CVE-2025-23103 is a high-severity vulnerability in Samsung Exynos 1480, classified under Out-of-bounds Write. CVSS score: 8.6/10. Published 2025-06-03.

How severe is CVE-2025-23103?

High severity. CVSS v3 base score is 8.6 out of 10.

Buffer overflow in Samsung Exynos 1480

CVE-2025-23103

An issue was discovered in Samsung Mobile Processor Exynos 1480 and 2400. The lack of a length check leads to out-of-bounds writes.

Vulnerability class: Buffer Overflow

Published 2025-06-03 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.6 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L.

EPSS exploit prediction

EPSS: 0.003 (25.2th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 25th percentile — 25.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: +0.000

Affected products

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

References

semiconductor.samsung.com/support/quality-support/product-security-updates/ (Vendor Advisory)
semiconductor.samsung.com/support/quality-support/product-security-updates/cve-… (Vendor Advisory)

Frequently asked questions

What is CVE-2025-23103?: CVE-2025-23103 is a high-severity vulnerability in Samsung Exynos 1480, classified under Out-of-bounds Write. CVSS score: 8.6/10. Published 2025-06-03.
How severe is CVE-2025-23103?: High severity. CVSS v3 base score is 8.6 out of 10.