CVE-2026-28640

Analyzed Analyzed - Analysis Complete

Credential Storage Activity Local Privilege Escalation

Publication date: 2026-10-05

Last updated on: 2026-10-07

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

Description

In checkCallerIsCertInstallerOrSelfInProfile of CredentialStorageActivity.java, there is a possible permission bypass due to improper input validation. 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

Probability:
Percentile:

Meta Information

Published

2026-10-05

Last Modified

2026-10-07

Generated

2026-10-19

AI Q&A

2026-10-05

EPSS Evaluated

2026-10-18

NVD

CVE-2026-28640

EUVD

EUVD-2026-92627

Affected Vendors & Products

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

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-20	The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.

Attack-Flow Graph

Executive Summary

This vulnerability is a permission bypass in Android's CredentialStorageActivity. It occurs due to improper input validation in the checkCallerIsCertInstallerOrSelfInProfile function. An attacker could exploit this to gain elevated privileges locally without needing additional execution permissions or user interaction.

Impact Analysis

This vulnerability could allow an attacker to bypass security restrictions on your Android device. They might gain unauthorized access to sensitive data or perform actions requiring higher permissions, such as installing certificates or modifying system settings.

Compliance Impact

This vulnerability allows local privilege escalation without user interaction or additional execution privileges. Such unauthorized access could potentially lead to unauthorized data access or modification, which may violate compliance requirements under GDPR or HIPAA if sensitive data is exposed or altered.

Mitigation Strategies

Apply the latest Android security updates from Google to patch the CredentialStorageActivity.java vulnerability. Monitor official Android security bulletins for updates related to this issue.

Hi! I’m here to help you understand CVE-2026-28640. Ask me anything about the vulnerability, its impact, or mitigation strategies.

0/70