CVE-2024-27221

Local privilege escalation via unchecked policy update

Published Mar 11, 2024 · Updated Aug 27, 2024

An out-of-bounds write in Android 13's ACPM update_policy_data function allows local users to elevate privileges without user interaction. The function writes updated policy data without checking the destination buffer bounds, so crafted data can overwrite adjacent memory. Exploitation requires low-privileged code already running on an affected Pixel device and can grant higher privileges or corrupt device state.

CVSS severity7.8
High
EPSS probability0.09%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

An out-of-bounds write in Android 13's ACPM update_policy_data function allows local users to elevate privileges without user interaction. The function writes updated policy data without checking the destination buffer bounds, so crafted data can overwrite adjacent memory. Exploitation requires low-privileged code already running on an affected Pixel device and can grant higher privileges or corrupt device state.

The record

CVE
CVE-2024-27221
Published
Mar 11, 2024
Updated
Aug 27, 2024
Vendor
Google
Product
Android
Classifications
CWE-787, T1404
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 11, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 27, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=13

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Google · Androidversion=13

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-787Out-of-bounds Write
T1404Exploitation for Privilege Escalation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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