CVE-2026-23786 PUBLISHED

Assigner: mitre
Reserved: 16.01.2026 Published: 14.09.2026 Updated: 14.09.2026

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.

Metrics

CVSS 3.1

CVSS Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:L
CVSS Score: 2.8

Attack Vector	Local	Scope	Changed
Attack Complexity	High	Confidentiality Impact	None
Privileges Required	Low	Integrity Impact	None
User Interaction	None	Availability Impact	Low

CVSS 3.1

Product Status

Vendor	Samsung
Product	Exynos 1280 firmware
Versions	Default: unknown affected from 0 to 2025-12-24 (incl.)

References

https://semiconductor.samsung.com/support/quality-support/product-security-updates/
https://semiconductor.samsung.com/support/quality-support/product-security-updates/cve-2026-23786/

Problem Types

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