# CVE-2026-33957

## Summary

- **CVE ID:** CVE-2026-33957
- **Severity:** MEDIUM
- **CVSS Score:** 4.2 (CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:L/I:N/A:L)
- **CWE:** CWE-787
- **Published:** Sep 14, 2026
- **Last Modified:** Sep 14, 2026

## 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.

## Affected Products

- Samsung — Exynos 1580 firmware (0)

## References

- [CNA](https://semiconductor.samsung.com/support/quality-support/product-security-updates/)
- [CNA](https://semiconductor.samsung.com/support/quality-support/product-security-updates/cve-2026-33957/)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.09%
- **EPSS Percentile:** 0.7

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-18._