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Android CVE-2026-28626

| EUVDEUVD-2026-73972 HIGH
URL Redirection to Untrusted Site (Open Redirect) (CWE-601)
2026-09-08 security@android.com GHSA-qfq4-cq59-3r64
7.3
CVSS 3.1 · Vendor: android
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Severity by source

Vendor (android) PRIMARY
7.3 HIGH
AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
vuln.today AI
7.3 HIGH

Local attack via installed app (AV:L), low privilege required (PR:L), mandatory user interaction (UI:R); full CIA impact reflects privilege escalation to a higher Android system trust level.

3.1 AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
4.0 AV:L/AC:L/AT:N/PR:L/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Primary rating from Vendor (android).

CVSS VectorVendor: android

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

6
Metadata Corrected
Sep 10, 2026 - 17:40 vuln.today
tag: Google added
Metadata Corrected
Sep 10, 2026 - 17:40 vuln.today
tag: Android added
Analysis Generated
Sep 10, 2026 - 17:35 vuln.today
CVSS changed
Sep 10, 2026 - 15:22 NVD
7.3 (HIGH)
CVE Published
Sep 08, 2026 - 19:17 cve.org
UNKNOWN (no severity yet)
CVE Published
Sep 08, 2026 - 19:17 cve.org
HIGH 7.3

DescriptionCVE.org

In onCreate of SetupPassthroughActivity.java, there is a possible way to launch arbitrary activity due to Intent redirection . This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is needed for exploitation.

AnalysisAI

Intent redirection in Android's SetupPassthroughActivity allows a locally present, low-privilege attacker to launch arbitrary activities and escalate privileges to a higher-trust system level. Affecting Android 14 through 17 (including 16-qpr2), the flaw resides in the onCreate method of SetupPassthroughActivity.java and requires user interaction to trigger. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
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Delivery
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Exploit
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Execution
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Persist
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Impact
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Vulnerability AssessmentAI

Exploitation Exploitation requires a malicious application to be installed on the target device with at least low-privilege permissions (PR:L); the device must permit installation of the attacker's app via sideloading or a compromised store. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The CVSS 3.1 vector AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H appropriately captures a local, low-privilege flaw that requires user interaction, yielding a 7.3 base score that aligns with the realistic attack surface. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario Full exploit scenario with step-by-step reproduction available after sign-in.
Remediation Apply the Android Security Patch Level dated 2026-09-01 as specified in the September 2026 Android Security Bulletin at https://source.android.com/docs/security/bulletin/2026/2026-09-01. … Detailed patch versions, workarounds, and compensating controls in full report.

Recommended ActionAI

Within 24 hours: Notify device management and security teams of the vulnerability affecting Android 14 through 17 inclusive; audit your device inventory to identify and catalog affected devices. …

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CVE-2026-28626 vulnerability details – vuln.today

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