What is CVE-2026-23788?

CVE-2026-23788 is a medium-severity vulnerability in Samsung Exynos 1280 Firmware, classified under Heap-based Buffer Overflow. CVSS score: 4.2/10. Published 2026-09-14.

How severe is CVE-2026-23788?

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

Buffer overflow in Samsung Exynos 1280 Firmware

CVE-2026-23788

An issue was discovered in DPU in Samsung Mobile Processor Exynos 1280, 2200, and 1380. A heap overflow in the Exynos DRM HDR driver (due to improper buffer size validation) leads to kernel memory corruption and a system crash.

Vulnerability class: Buffer Overflow

EPSS: 0.001 (1.0th 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-122 — Heap-based Buffer Overflow

References

cve@mitre.org
cve@mitre.org

Frequently asked questions

What is CVE-2026-23788?: CVE-2026-23788 is a medium-severity vulnerability in Samsung Exynos 1280 Firmware, classified under Heap-based Buffer Overflow. CVSS score: 4.2/10. Published 2026-09-14.
How severe is CVE-2026-23788?: Medium severity. CVSS v3 base score is 4.2 out of 10.