CVE-2022-20460

Local privilege escalation via memory-map corruption

Published Nov 17, 2022 · Updated Apr 30, 2025

Improper input validation in Google Titan M on Android kernel builds allows local users with System privileges to escalate privilege. The undisclosed mprot_unmap locus accepts insufficiently validated input and can corrupt the memory mapping; Google has not published the affected code path. Exploitation requires existing System execution privileges on a supported Pixel device and no user interaction, while the resulting elevated privilege boundary remains unspecified.

CVSS severity6.7
Medium
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

Improper input validation in Google Titan M on Android kernel builds allows local users with System privileges to escalate privilege. The undisclosed mprot_unmap locus accepts insufficiently validated input and can corrupt the memory mapping; Google has not published the affected code path. Exploitation requires existing System execution privileges on a supported Pixel device and no user interaction, while the resulting elevated privilege boundary remains unspecified.

The record

CVE
CVE-2022-20460
Published
Nov 17, 2022
Updated
Apr 30, 2025
Vendor
Google
Product
Titan M
Classifications
CWE-787, T1068
Attack vector
local
Privileges
admin

Timeline

How it unfolded

  1. Nov 17, 2022CVE publishedPublication date reported by the CVE source.
  2. Apr 30, 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?

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

  1. Affected versionversion=Android kernel

What conditions does exploitation require?

Attack vectorlocal
Required privilegesadmin

What is affected?

Google · Titan Mversion=Android kernel

Published CVSS scores

6.7CISA-ADPCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
6.7NIST NVDCVSS:3.1/AV:L/AC:L/PR:H/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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-787Out-of-bounds Write
T1068Exploitation 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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