AndroidOperating system · Google

CVE-2026-0018

MEDIUM · 5.5 CVSS v3.1 Published 2026-06-01
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
57/100
Remediation priority · Elevated
Zero-click

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
In multiple functions of AccessibilityManagerService.java, there is a possible persistent denial of service due to improper input validation. This could lead to local denial of service with no additional execution privileges needed. User interaction is not needed for exploitation.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · moderate confidence

This is an Android platform vulnerability in AccessibilityManagerService.java where improper input validation in multiple functions allows a local attacker to cause a persistent denial of service without requiring any special privileges or user interaction. The vulnerability enables any local process to trigger the DoS condition through crafted input to the accessibility service.

MitigationApply the vendor-supplied Android security patch that includes proper input validation fixes in AccessibilityManagerService.java; this is typically delivered through monthly Android security bulletins.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
AndroidOperating system
Affected:= 15.0= 16.0

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Check Android OS version
    Navigate to Settings > About Phone > Android version, or run 'getprop ro.build.version.release' via ADB
    Affected if The displayed version equals 15.0 or 16.0
  2. Verify Accessibility services status
    Go to Settings > Accessibility > Services, or run 'dumpsys accessibility' via ADB to list enabled accessibility services
    Affected if Any accessibility service is enabled and the device runs Android 15.0 or 16.0
  3. Confirm local app context availability
    Run 'pm list packages -3' via ADB to list third-party apps, or check if unknown apps can be installed via Settings > Security > Unknown sources
    Affected if The device runs Android 15.0 or 16.0 and allows installation of third-party applications that could access accessibility APIs

The device is affected if it runs Android 15.0 or 16.0 and has accessibility services enabled, allowing a local application to trigger the improper input validation in AccessibilityManagerService.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

dbcve · scoped
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Apply the vendor-supplied Android security patch that includes proper input validation fixes in AccessibilityManagerService.java; this is typically delivered through monthly Android security bulletins.

Recommended fix Moderate confidence

Android 15.1 or Android 16.1 (or later monthly security patch)

  1. 1. Verify the Android version on the affected device by going to Settings > About Phone > Android version
  2. 2. Check for available system updates by going to Settings > System > Software Update (or Settings > System > Updates on Pixel devices)
  3. 3. Download and install the latest Android security patch or system update
  4. 4. If the device is carrier-managed, contact the carrier for the available update
  5. 5. After updating, verify the Android version shows the patched release (e.g., 15.1 or 16.1)
Caveat Users should backup important data before updating, as major Android version upgrades may have app compatibility considerations

Generated from the published advisory — verify against the referenced sources before acting.

Fix this in Android Scoped from the published advisory
  • Consultation3.0 h
  • Implementation6.0 h
  • Testing4.0 h
  • Review / QA2.0 h
15.0 hours of engineering $2,640
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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2026-0018 in production — separate from our analysis above.

No notes yet

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
  • No spam, self-promotion, credentials, or personal data