An issue was discovered in CustOS Driver in Samsung Mobile Processor Exynos 1580. Requesting oversized shared memory from the custos_iwc device enables out-of-bounds read and write, potentially leading to memory corruption or information leakage.

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Exynos 1580 Firmware Subscribe
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Fixes

Solution

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Workaround

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History

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

Type Values Removed Values Added
Title Out-of-Bounds Shared Memory Access in CustOS Driver on Exynos 1580

Mon, 14 Sep 2026 23:45:00 +0000

Type Values Removed Values Added
Title Out‑of‑Bounds Read/Write via Oversized Shared Memory Request in CustOS Driver

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 Out‑of‑Bounds Read/Write via Oversized Shared Memory Request in CustOS Driver

Mon, 14 Sep 2026 01:45:00 +0000

Type Values Removed Values Added
Description An issue was discovered in CustOS Driver in Samsung Mobile Processor Exynos 1580. Requesting oversized shared memory from the custos_iwc device enables out-of-bounds read and write, potentially leading to memory corruption or information leakage.
First Time appeared Samsung
Samsung exynos 1580 Firmware
Weaknesses CWE-787
CPEs cpe:2.3:a:samsung:exynos_1580_firmware:*:*:*:*:*:*:*:*
Vendors & Products Samsung
Samsung exynos 1580 Firmware
References
Metrics cvssV3_1

{'score': 4.2, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:L/I:N/A:L'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2026-09-14T18:14:04.557Z

Reserved: 2026-03-24T00:00:00.000Z

Link: CVE-2026-33957

cve-icon Vulnrichment

Updated: 2026-09-14T14:56:42.577Z

cve-icon NVD

Status : Received

Published: 2026-09-14T02:17:14.390

Modified: 2026-09-14T19:17:18.797

Link: CVE-2026-33957

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

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

Weaknesses