Samsung Exynos DRM HDR Driver Heap Overflow
CVE-2026-23788 Published on September 14, 2026
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 Analysis
CVE-2026-23788 is exploitable with local system access, and requires small amount of user privileges. This vulnerability is consided to have a high level of attack complexity. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality, with no impact on integrity and availability.
Weakness Type
Heap-based Buffer Overflow
A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().
Products Associated with CVE-2026-23788
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Affected Versions
Samsung Exynos 1280 firmware:- Before and including 2025-12-25 is affected.