dbcve.org
AndroidOperating system · Google

CVE-2022-42511

MEDIUM · 6.7 CVSS v3.1 Published 2022-12-16
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
69/100
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 EmbmsSessionData::encode of embmsdata.cpp, there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-241762712References: N/A

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

A missing bounds check in EmbmsSessionData::encode in embmsdata.cpp allows an out-of-bounds write to occur, potentially enabling local privilege escalation from System execution privileges. The vulnerability exists because the encode function does not validate buffer boundaries before writing data.

MitigationApply the Android security patch that addresses this vulnerability (A-241762712). This is a kernel/component-level fix requiring a vendor-supplied update.

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:all versions

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
High
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/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. Confirm Android platform
    Check if the device runs Google Android OS (e.g., run 'getprop ro.build.fingerprint' or 'getprop ro.product.model' to identify the device and OS)
    Affected if The device is running any version of Google Android and contains the embms component
  2. Identify embms component presence
    Check if embmsdata.cpp or embms related libraries/modules exist on the device. Look for files like libembmsdata.so or search for 'embms' in /system/lib or /vendor/lib directories using 'find /system -name *embms* 2>/dev/null'
    Affected if The embms component (embmsdata library) is present on the device
  3. Verify embms service is enabled
    Check if the embms daemon/service is running. Use 'ps -A | grep embms' or check service listing via 'service list' to see if embms service is active
    Affected if The embms service/daemon is running or available on the device
  4. Check Android security patch level
    Run 'getprop ro.build.version.security_patch' to retrieve the installed security patch level. Compare this against the date of the patch addressing A-241762712
    Affected if The security patch level is earlier than the update that addresses A-241762712, or the patch level cannot be verified

A device is affected if it runs Google Android, has the embms component present, and is missing the security patch that addresses A-241762712 (CVE-2022-42511).

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 Android security patch that addresses this vulnerability (A-241762712). This is a kernel/component-level fix requiring a vendor-supplied update.

Recommended fix Moderate confidence

Latest Android security patch level (check Android Security Bulletin for the specific release containing the fix for A-241762712)

  1. Check the Android Security Bulletin for Android ID A-241762712 to identify the specific patch level containing the fix
  2. Ensure your Android device is updated to the latest available security patch level
  3. For enterprise or embedded systems using Android, verify the Android version includes the embmsdata.cpp fix for the out-of-bounds write vulnerability
  4. If over-the-air updates are unavailable, obtain a system image update from your device manufacturer that includes the security patch
Caveat Security updates are generally backward-compatible; however, verify with device manufacturer for any custom EMBMS implementations that may be affected

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

Fix this in Android Scoped from the published advisory
  • Consultation4.0 h
  • Implementation8.0 h
  • Testing12.0 h
  • Review / QA4.0 h
28.0 hours of engineering $4,760
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Scan for this in your stack

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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-2022-42511 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