What is CVE-2025-54329?

CVE-2025-54329 is a high-severity vulnerability in Samsung Exynos 1280, classified under Heap-based Buffer Overflow. CVSS score: 7.5/10. Published 2025-11-04.

How severe is CVE-2025-54329?

High severity. CVSS v3 base score is 7.5 out of 10.

Buffer overflow in Samsung Exynos 1280

CVE-2025-54329

An issue was discovered in NAS in Samsung Mobile Processor, Wearable Processor, and Modem Exynos 980, 990, 850, 2100, 1280, 2200, 1330, 1380, 1480, 2400, 1580, 2500, W920, W930, W1000, Modem 5123, Modem 5300, and Modem 5400. The function used to send a multiple-payloads message (including an SMS message) lacks bounds checking, which can lead to a heap overflow.

Vulnerability class: Buffer Overflow

Published 2025-11-04 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.004 (30.1th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 30th percentile — 30.1% 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-122 — Heap-based Buffer Overflow

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-2025-54329?: CVE-2025-54329 is a high-severity vulnerability in Samsung Exynos 1280, classified under Heap-based Buffer Overflow. CVSS score: 7.5/10. Published 2025-11-04.
How severe is CVE-2025-54329?: High severity. CVSS v3 base score is 7.5 out of 10.