What is CVE-2024-56426?

CVE-2024-56426 is a high-severity vulnerability in Samsung Exynos 1080, classified under Out-of-bounds Write. CVSS score: 7.5/10. Published 2025-11-04.

How severe is CVE-2024-56426?

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

Is CVE-2024-56426 known to be exploited?

2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Buffer overflow in Samsung Exynos 1080

CVE-2024-56426

An issue was discovered in Samsung Mobile Processor and Wearable Processor Exynos 980, 990, 850, 1080, 2100, 1280, 2200, 1330, 1380, 1480, 2400, W920, W930, W1000. The lack of a length check leads to out-of-bounds writes via malformed USB packets to the target.

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 (32.3th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 32nd percentile — 32.3% 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

Public proof-of-concept exploits

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-2024-56426?: CVE-2024-56426 is a high-severity vulnerability in Samsung Exynos 1080, classified under Out-of-bounds Write. CVSS score: 7.5/10. Published 2025-11-04.
How severe is CVE-2024-56426?: High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2024-56426 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.