CVE-2026-23789
Received Received - Intake

Double-Free in Samsung Exynos MFC Encoder Driver

Publication date: 2026-09-14

Last updated on: 2026-09-14

Assigner: MITRE

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 Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published
2026-09-14
Last Modified
2026-09-14
Generated
2026-09-14
AI Q&A
2026-09-14
EPSS Evaluated
N/A
NVD
CVE-2026-23789
EUVD
EUVD-2026-77153

Affected Vendors & Products

Showing 16 associated CPEs
Vendor Product Version / Range
samsung exynos_850 *
samsung exynos_1080 *
samsung exynos_2100 *
samsung exynos_1280 *
samsung exynos_2200 *
samsung exynos_1330 *
samsung exynos_1380 *
samsung exynos_1480 *
samsung exynos_2400 *
samsung exynos_1580 *
samsung exynos_2500 *
samsung exynos_2600 *
samsung exynos_1680 *
samsung w920 *
samsung w930 *
samsung w1000 *

Helpful Resources

Exploitability

CWE
CWE Icon
KEV
KEV Icon
CWE ID Description
CWE-415 The product calls free() twice on the same memory address.

Attack-Flow Graph

AI Quick Actions

Instant insights powered by AI
Executive Summary

This vulnerability is a double-free issue in Samsung's Exynos Mobile and Wearable processors. It occurs in the MFC encoder driver due to improper cleanup of dma_buf references during error handling. This leads to kernel memory corruption and could allow arbitrary code execution.

Detection Guidance

Detection requires checking for affected Samsung Exynos processors and verifying kernel driver versions. Use commands like 'uname -a' to check kernel version and 'lsmod | grep mfc' to see if the vulnerable MFC encoder driver is loaded. Inspect system logs for memory corruption errors or kernel panics.

Impact Analysis

An attacker could exploit this flaw to execute arbitrary code on your device, potentially gaining control over it. This may result in unauthorized access to sensitive data, system crashes, or further compromise of device functionality.

Compliance Impact

This vulnerability could potentially lead to unauthorized memory access or code execution, which may result in data breaches or unauthorized data exposure. Such incidents could violate compliance requirements under GDPR (data protection) and HIPAA (healthcare data privacy), depending on the affected system's use case and data processed.

Mitigation Strategies

Apply the latest security patches from Samsung for the affected Exynos processors. Check the Samsung support page for CVE-2026-23789 and update the MFC encoder driver to the fixed version.

Chat Assistant

Ask questions about this CVE
Hi! I’m here to help you understand CVE-2026-23789. Ask me anything about the vulnerability, its impact, or mitigation strategies.
0/70

EPSS Chart