File Tampering in Android Runtime Image

Publication date: 2026-09-08

Last updated on: 2026-09-23

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

Description

In WriteImageToDisk of runtime_image.cc, there is a possible file tampering due to a logic error in the code. 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

2026-09-10

EPSS Evaluated

2026-09-27

NVD

CVE-2026-28664

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-693	The product does not use or incorrectly uses a protection mechanism that provides sufficient defense against directed attacks against the product.

Attack-Flow Graph

Executive Summary

This vulnerability involves a logic error in the WriteImageToDisk function of runtime_image.cc. It allows file tampering, which could lead to local privilege escalation without needing extra execution privileges or user interaction.

Impact Analysis

An attacker could exploit this to tamper with files on your system, potentially gaining higher privileges. This might allow them to access sensitive data or perform unauthorized actions on your device.

Mitigation Strategies

Apply the latest security patches from Android immediately. Monitor for unauthorized file modifications in system directories. Restrict write access to critical system paths. Review logs for suspicious disk write operations.

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