What is CVE-2026-23786?

CVE-2026-23786 is a low-severity vulnerability in Samsung Exynos 1280 Firmware, classified under Time-of-check Time-of-use (TOCTOU) Race Condition. CVSS score: 2.8/10. Published 2026-09-14.

How severe is CVE-2026-23786?

Low severity. CVSS v3 base score is 2.8 out of 10.

Vulnerability in Samsung Exynos 1280 Firmware

CVE-2026-23786

An issue was discovered in DPU in Samsung Mobile Processor Exynos 1280, 2200, 1380, 1480, 2400, 1580, 2500, 1680, and 2600. A TOCTOU race condition in the Exynos DRM HDR Driver leads to a heap overflow, causing a kernel crash.

Vulnerability class: TOCTOU (Time-of-Check to Time-of-Use)

EPSS: 0.001 (0.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 2.8 (Low). Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:L.

Affected products

Samsung Exynos 1280 Firmware

Weakness classification (CWE)

CWE-367 — Time-of-check Time-of-use (TOCTOU) Race Condition

References

Frequently asked questions

What is CVE-2026-23786?: CVE-2026-23786 is a low-severity vulnerability in Samsung Exynos 1280 Firmware, classified under Time-of-check Time-of-use (TOCTOU) Race Condition. CVSS score: 2.8/10. Published 2026-09-14.
How severe is CVE-2026-23786?: Low severity. CVSS v3 base score is 2.8 out of 10.