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Android EUVDEUVD-2026-73947

| CVE-2026-28583 HIGH
Protection Mechanism Failure (CWE-693)
2026-09-08 security@android.com GHSA-j9v6-rcg9-grmm
7.8
CVSS 3.1 · Vendor: android
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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain

  1. Access
    Gain local app execution on device
  2. Delivery
    Craft malformed camera metadata structure
  3. Exploit
    Invoke camera framework validation path
  4. Execution
    Trigger logical error in validate_camera_metadata_structure
  5. Persist
    Out-of-bounds write corrupts adjacent memory
  6. Impact
    Achieve local privilege escalation

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A06:2025 - Insecure Design
ASVS 5.0
V15 - Secure Coding and Architecture Protection mechanism completeness
Exploitation Conditions

Exploitation requires local code execution on the target Android device with at minimum a standard (low-privilege) application context, as indicated by CVSS PR:L and AV:L. No user interaction is required once the attacker's code is running on device. The vulnerable code path (validate_camera_metadata_structure) must be reachable from the attacker's execution context, which is achievable for apps with camera permission or via IPC to the camera server process. No special non-default configuration is required - the camera subsystem is present in all standard Android builds. Limiting factors include the requirement for initial local code execution (the attacker must already have an app running on the device), and SSVC automatable=no indicating the exploit cannot be trivially replicated at scale without a local foothold.

Impact

CVSS 7.8 (AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H) accurately reflects the local, low-complexity privilege escalation with full CIA impact. Real-world exploitation probability is very low: EPSS at 0.12% (2nd percentile) and SSVC exploitation=none both indicate no observed in-the-wild activity. SSVC automatable=no reinforces that this cannot be mass-deployed without some local foothold. The SSVC technical impact of 'total' aligns with the C:H/I:H/A:H CVSS triad, confirming that successful exploitation would give an attacker near-complete control over the affected process or device security boundary. This pattern - high CVSS, low EPSS, no KEV, no POC - characterizes an unexercised local LPE that requires an attacker already on the device. Priority should be driven by device management maturity: unmanaged consumer Android fleets with delayed patching are at higher residual risk than managed enterprise fleets with monthly patch cycles.

Exploit ScenarioDerived

A malicious or compromised application installed on an Android device crafts a deliberately malformed camera metadata structure and submits it to the camera framework, triggering the logical error in validate_camera_metadata_structure. The resulting out-of-bounds write corrupts adjacent memory in the camera server or a higher-privileged process, allowing the attacker to redirect execution and gain elevated privileges - potentially camera server or system-level access. No public proof-of-concept exists at time of analysis.

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).
No patch listed yet 0.1% exploitation probability (EPSS)

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AnalysisAIv1 – Sep 10, 2026

Out-of-bounds write in Android's camera metadata validation logic (validate_camera_metadata_structure in camera_metadata.c) allows a local low-privileged attacker to escalate privileges to a higher-privileged context with full confidentiality, integrity, and availability impact. Affects Android 14 through 16-qpr2, patched in the September 2026 Android Security Bulletin. No public exploit code or active exploitation has been identified; EPSS sits at the 2nd percentile and SSVC rates exploitation as none.

RemediationAI

Apply the September 2026 Android Security Bulletin patches, available at https://source.android.com/docs/security/bulletin/2026/2026-09-01. Device manufacturers (OEMs) are expected to incorporate these patches into their respective over-the-air updates; end users should apply monthly Android security updates as soon as their OEM releases them. As a compensating control where patching is delayed, restricting untrusted application installation (disabling sideloading, enforcing managed device policies via MDM) reduces the attack surface by limiting adversarial local code execution that would be required to reach the vulnerable camera metadata validation path. Blocking camera API access via app permission management (where feasible) may also reduce exposure but carries functional trade-offs for camera-dependent applications.

Affected VersionsENISA

Android 16-qpr2
Android 16
Android 15
Android 14

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Technical ContextAI · show details

The vulnerability resides in camera_metadata.c, specifically the validate_camera_metadata_structure function which is part of Android's Camera2 API infrastructure used to validate camera metadata buffer layouts before consumption by the camera HAL (Hardware Abstraction Layer) and framework. CWE-693 (Protection Mechanism Failure) identifies the root cause: the validation logic itself - which should enforce structural bounds - contains a logical error that allows an out-of-bounds write to occur rather than rejecting malformed input. This is not a simple off-by-one but a logical flaw in the validation guard itself, meaning the protection mechanism is bypassed by design flaws rather than being overwhelmed. The affected codebase spans Android 14, 15, 16, and 16-qpr2 as confirmed by the EUVD listing.

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  • Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

Vendor (android) PRIMARY 7.8 HIGH
AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
vuln.today AI 7.8 HIGH

Local access with low privileges required to reach camera validation path; no user interaction; full CIA impact consistent with LPE to a higher-privileged process.

3.1 AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
4.0 AV:L/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
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

3
CVSS changed
Sep 10, 2026 - 16:22 NVD
7.8 (HIGH)
CVE Published
Sep 08, 2026 - 19:17 cve.org
UNKNOWN (no severity yet)
CVE Published
Sep 08, 2026 - 19:17 cve.org
HIGH 7.8

DescriptionCVE.org

In validate_camera_metadata_structure of camera_metadata.c, there is a possible out of bounds write due to a logical 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.

Executive ViewAI

Why It Matters

Android devices running versions 14 through 16-qpr2 contain a privilege escalation vulnerability allowing any app or local user to gain full device control and unrestricted access to all data and system functions; no public exploit has been identified at time of analysis, though the threat potential is significant given the severity of complete device compromise. This vulnerability poses serious risk to organizations with Android deployments, particularly those storing sensitive data on devices or providing corporate network access through mobile applications. Patching through the September 2026 Android Security Bulletin is essential to mitigate the privilege escalation threat.

Business Impact: High
Compensating Controls

Apply vendor patch released in September 2026 Android Security Bulletin. For devices awaiting patch deployment, implement MDM policies restricting third-party application installations and prohibit connection to corporate networks until patched.

Threat Intelligence Overview

EPSS Score
0.1%
Top 98% exploitable
Prevalence
Ubiquitous
Android runs on billions of active consumer and enterprise devices globally
Data Quality
5 sources
Confidence: Medium

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity HIGH
CISA KEV No
Public POC No
EPSS 0.1%
Patch available No
Active threat No
Deciding rule
HIGH severity (CVSS 7.0-8.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision
Defer
Exploitation
None
System Exposure· derived
Small
Automatable
No
Human Impact
High
Technical Impact
Total

Priority Score

39
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +39
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Privilege escalation occurs when an attacker leverages flaws in access control mechanisms to gain permissions beyond what they were originally granted.

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