CVE-2026-23789
High
Description
An issue was discovered in MFC in Samsung Mobile Processor and Wearable Processor Exynos 850, 1080, 2100, 1280, 2200, 1330, 1380, 1480, 2400, 1580, 2500, 2600, 1680, W920, W930, and W1000. A double-free vulnerability in the Exynos MFC encoder driver (due to improper cleanup of dma_buf references during error handling) leads to kernel memory corruption and potential arbitrary code execution.
SeverityHigh
CVSS7.8
Exploit probability—
Product
Exynos 850 firmware
PublishedSep 14, 2026
First seenSep 14, 2026
Weakness typeCWE-415CWE-415
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Samsung Exynos 850 firmware | v ≤ 2025-12-23 | — |
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