CVE-2026-58701

Received Received - Intake

Out-of-Bounds Write in Trusty TEE for ARM64

Publication date: 2026-09-15

Last updated on: 2026-09-18

Assigner: Google Devices

Description

In trusty_dputc of generic-arm64-smcall.c, there is a possible out-of-bounds write due to a race condition. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-09-15

Last Modified

2026-09-18

Generated

2026-10-06

AI Q&A

2026-09-16

EPSS Evaluated

2026-10-04

NVD

CVE-2026-58701

EUVD

EUVD-2026-79003

Affected Vendors & Products

Vendor	Product	Version / Range
google	android	*

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-362	The product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently.
CWE-787	The product writes data past the end, or before the beginning, of the intended buffer.

Attack-Flow Graph

Executive Summary

This vulnerability is a race condition in the function trusty_dputc of generic-arm64-smcall.c that could lead to an out-of-bounds write. This flaw may allow a local attacker with system execution privileges to escalate their privileges.

Impact Analysis

If exploited, this vulnerability could allow an attacker to gain higher privileges on your system, potentially leading to unauthorized access or control. However, the attacker needs existing system execution privileges to exploit it.

Compliance Impact

This vulnerability involves a race condition leading to a possible out-of-bounds write with local privilege escalation. While not directly tied to data protection standards like GDPR or HIPAA, such vulnerabilities could potentially compromise system integrity, leading to unauthorized access or data breaches if exploited. Compliance may be indirectly affected if the vulnerability enables access to sensitive data or system controls.

Mitigation Strategies

Apply the latest security patches or updates from your system or software vendor to address the race condition in trusty_dputc. Monitor vendor advisories for patches specific to generic-arm64-smcall.c.

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