Memory Corruption in Android rw_mfc

Publication date: 2026-09-08

Last updated on: 2026-09-23

Assigner: Android (associated with Google Inc. or Open Handset Alliance)

Description

In rw_mfc_handle_read_op of rw_mfc.cc, there is a possible out of bounds write due to an incorrect bounds check. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.

CVSS Scores

EPSS Scores

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Meta Information

Published

2026-09-08

Last Modified

2026-09-23

Generated

2026-09-29

AI Q&A

2026-09-09

EPSS Evaluated

2026-09-27

NVD

CVE-2026-49884

Affected Vendors & Products

Vendor	Product	Version / Range
google	android	14.0
google	android	15.0
google	android	16.0
google	android	16.0
google	android	17.0

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-120	The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer.

Attack-Flow Graph

Executive Summary

This vulnerability is a memory corruption issue in the rw_mfc module of Android. It involves an out-of-bounds write due to incorrect bounds checking in the rw_mfc_handle_read_op function. This flaw could allow an attacker to write data beyond the intended memory region.

Impact Analysis

This vulnerability could allow a local attacker to escalate their privileges on the affected device. Since no additional execution privileges or user interaction are required, it poses a significant risk for unauthorized system access.

Mitigation Strategies

Apply the latest security patches from the Android security bulletin to address the vulnerability in rw_mfc.cc. Monitor vendor advisories for updates and disable affected components if patches are unavailable.

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