What is CVE-2025-23099?

CVE-2025-23099 is a critical-severity vulnerability in Samsung Exynos 1480, classified under Out-of-bounds Write. CVSS score: 9.1/10. Published 2025-06-02.

How severe is CVE-2025-23099?

Critical severity. CVSS v3 base score is 9.1 out of 10.

Buffer overflow in Samsung Exynos 1480

CVE-2025-23099

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 2025-06-02 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H.

EPSS exploit prediction

EPSS: 0.004 (34.5th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 35th percentile — 34.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · 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-2025-23099?: CVE-2025-23099 is a critical-severity vulnerability in Samsung Exynos 1480, classified under Out-of-bounds Write. CVSS score: 9.1/10. Published 2025-06-02.
How severe is CVE-2025-23099?: Critical severity. CVSS v3 base score is 9.1 out of 10.