CVE-2018-9434

ASLR bypass via protected Parcel object reads

Published Jan 17, 2025 · Updated Mar 24, 2025

Information disclosure in Android 6.0 through 8.1 allows local users to bypass ASLR through protected Binder Parcel object reads. Parcel.cpp permits non-object read methods to consume protected Binder or file-descriptor object data, and failed protected reads do not advance the parcel position. A local low-privileged process can reuse those reads to expose address-layout information; the flaw does not itself execute code or require user interaction.

CVSS severity7.8
High
EPSS probability0.10%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information disclosure in Android 6.0 through 8.1 allows local users to bypass ASLR through protected Binder Parcel object reads. Parcel.cpp permits non-object read methods to consume protected Binder or file-descriptor object data, and failed protected reads do not advance the parcel position. A local low-privileged process can reuse those reads to expose address-layout information; the flaw does not itself execute code or require user interaction.

The record

CVE
CVE-2018-9434
Published
Jan 17, 2025
Updated
Mar 24, 2025
Vendor
Google Cloud
Product
Android
Classifications
CWE-276, T1404
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jan 17, 2025CVE publishedPublication date reported by the CVE source.
  2. Mar 24, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

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  1. Affected versionversion=Android Kernel

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Google Cloud · Androidversion=Android Kernel

Published CVSS scores

7.8CISA-ADPCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-276Incorrect Default Permissions
T1404Exploitation for Privilege Escalation

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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