Description
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.
Published: 2026-09-14
Score: 2.8 Low
EPSS: < 1% Very Low
KEV: No
Impact: Kernel Crash (Denial of Service)
Action: Apply Firmware Update
AI Analysis

Impact

A time‑race condition causes a heap overflow that crashes the kernel. The crash results in a denial of service but does not provide an attacker with code execution or data disclosure.

Affected Systems

The vulnerability affects Samsung CPU families Exynos 1280, 2200, 1380, 1480, 2400, 1580, 2500, 1680, and 2600 firmware. All devices running the affected firmware version are at risk until the patch is applied.

Risk and Exploitability

The CVSS score of 2.8 indicates low severity, and the EPSS score of < 1% indicates a very low probability of exploitation. Because the fault requires access to the kernel through the DRM HDR driver, the likely attack vector is local privilege escalation or a compromised application with kernel interaction, not external remote exploitation. The vulnerability is not listed in the CISA KEV catalog, further supporting the low exploitation likelihood.

Generated by OpenCVE AI on September 15, 2026 at 15:49 UTC.

Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

  • Install the latest Samsung firmware to eliminate the crash
  • If possible, disable or bypass the DRM HDR driver until the firmware update is applied, which limits the risk of a crash
  • Monitor kernel logs for repeated crashes to confirm that the firmware update has resolved the issue

Generated by OpenCVE AI on September 15, 2026 at 15:49 UTC.

Tracking

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Advisories

No advisories yet.

History

Tue, 15 Sep 2026 16:15:00 +0000

Type Values Removed Values Added
Title Time‑of‑Check Time‑of‑Use Race Condition in Exynos DRM HDR Driver Causing Kernel Crash

Mon, 14 Sep 2026 23:15:00 +0000

Type Values Removed Values Added
Title Exynos DRM HDR Driver TOCTOU Race Condition Causes Kernel Crash

Mon, 14 Sep 2026 21:00:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Mon, 14 Sep 2026 12:15:00 +0000

Type Values Removed Values Added
Title Exynos DRM HDR Driver TOCTOU Race Condition Causes Kernel Crash

Mon, 14 Sep 2026 01:30:00 +0000

Type Values Removed Values Added
Description An issue was discovered in DPU 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. 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.

Mon, 14 Sep 2026 00:45:00 +0000

Type Values Removed Values Added
Description An issue was discovered in DPU 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.
First Time appeared Samsung
Samsung exynos 1280 Firmware
Weaknesses CWE-367
CPEs cpe:2.3:a:samsung:exynos_1280_firmware:*:*:*:*:*:*:*:*
Vendors & Products Samsung
Samsung exynos 1280 Firmware
References
Metrics cvssV3_1

{'score': 2.8, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:L'}


Subscriptions

Samsung Exynos 1280 Firmware
cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2026-09-14T18:14:31.372Z

Reserved: 2026-01-16T00:00:00.000Z

Link: CVE-2026-23786

cve-icon Vulnrichment

Updated: 2026-09-14T14:56:46.841Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-09-14T01:16:27.473

Modified: 2026-09-22T19:56:19.073

Link: CVE-2026-23786

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-15T16:00:17Z

Weaknesses
  • CWE-367

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