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Android CVE-2026-28666

| EUVDEUVD-2026-73994 HIGH
Incorrect Authorization (CWE-863)
2026-09-08 security@android.com GHSA-6v3g-4gv2-cwvj
8.8
CVSS 3.1 · Vendor: android
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Severity by source

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

Network-reachable via DNG image delivery, low privilege required per description and CVSS, no user interaction, full CIA impact via privilege escalation pathway.

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

Primary rating from Vendor (android).

CVSS VectorVendor: android

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

6
Metadata Corrected
Sep 10, 2026 - 15:40 vuln.today
tag: Google added
Metadata Corrected
Sep 10, 2026 - 15:40 vuln.today
tag: Authentication Bypass removed
Analysis Generated
Sep 10, 2026 - 15:32 vuln.today
CVSS changed
Sep 10, 2026 - 15:22 NVD
8.8 (HIGH)
CVE Published
Sep 08, 2026 - 19:17 cve.org
HIGH 8.8
CVE Published
Sep 08, 2026 - 19:17 cve.org
UNKNOWN (no severity yet)

DescriptionCVE.org

In multiple functions of LocalImageResolver.java, there is a possible Remote Persistent Denial of Service due to a DNG image rendering check bypass. This could lead to remote escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.

AnalysisAI

LocalImageResolver.java in Android 14 through 17 (including QPR2 releases) contains a DNG image rendering authorization check bypass (CWE-863) that enables remote privilege escalation with full confidentiality, integrity, and availability impact. The flaw requires only low-level privileges and no user interaction, expanding the attack surface beyond typical media-processing vulnerabilities that normally depend on explicit user file-opening. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
technique details hidden
Delivery
technique details hidden
Exploit
technique details hidden
Execution
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Impact
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Vulnerability AssessmentAI

Exploitation Exploitation requires the attacker to hold low-privilege access on the target Android device (PR:L per the CVSS vector) - a completely unauthenticated external attacker cannot trigger the flaw directly. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The CVSS 8.8 score (AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H) indicates a high-severity, network-reachable flaw with low-complexity exploitation and full CIA impact, which on its face warrants urgent patching. … 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 security patches distributed through the September 2026 Android Security Bulletin (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, inventory all organizational Android devices running versions 14-17 to establish a baseline risk profile and identify high-value systems requiring priority protection. …

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CVE-2026-28666 vulnerability details – vuln.today

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