What is CVE-2026-23791?

CVE-2026-23791 is a medium-severity vulnerability in Samsung Exynos 1280 Firmware, classified under Out-of-bounds Write. CVSS score: 4.2/10. Published 2026-09-14.

How severe is CVE-2026-23791?

Medium severity. CVSS v3 base score is 4.2 out of 10.

Buffer overflow in Samsung Exynos 1280 Firmware

CVE-2026-23791

An issue was discovered in DPU in Samsung Mobile Processor Exynos 1280, 2200, 1380, 1480, 2400, 1580, 2500, 1680, and 2600. An out-of-bounds write vulnerability in the Exynos DPU driver (due to missing input length validation in color mode LUT parsing) leads to kernel memory corruption and potential privilege escalation.

Vulnerability class: Buffer Overflow

EPSS: 0.001 (0.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.2 (Medium). Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:N/I:L/A:L.

Affected products

Samsung Exynos 1280 Firmware

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

References

Frequently asked questions

What is CVE-2026-23791?: CVE-2026-23791 is a medium-severity vulnerability in Samsung Exynos 1280 Firmware, classified under Out-of-bounds Write. CVSS score: 4.2/10. Published 2026-09-14.
How severe is CVE-2026-23791?: Medium severity. CVSS v3 base score is 4.2 out of 10.