CVE-2026-23789

Severity: high (CVSS 7.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-09-14 · updated 2026-09-22
Weakness: CWE-415

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.

Affected products

Samsung Exynos 850 firmware: through 2025-12-23

References

https://semiconductor.samsung.com/support/quality-support/product-security-updates/
https://semiconductor.samsung.com/support/quality-support/product-security-updates/cve-2026-23789/

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