High severity · published Sep 14, 2026
CVE-2026-23789
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,…
7.8
CVSS
0.2%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
Attack vector
Local
Complexity
High
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 4% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
E8
Exynos 850 firmware · Samsung
through 2025-12-23 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-23789
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-23789
semiconductor.samsung.com
https://semiconductor.samsung.com/support/quality-support/product-security-updates/
semiconductor.samsung.com
https://semiconductor.samsung.com/support/quality-support/product-security-updates/cve-2026-23789/
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