CVE-2022-20591

Local information disclosure via ppmpu_set logic error

Published Dec 16, 2022 · Updated Apr 18, 2025

Information disclosure in Google Pixel LDFW firmware for the Android kernel allows local users to read sensitive information. The ppmpu_set function in ppmpu.c contains the logic error, but Google has not disclosed the incorrect operation or the data exposed. Exploitation requires local low-privileged access, needs no user interaction, and has no published integrity or availability consequence.

CVSS severity5.5
Medium
EPSS probability0.18%
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 Google Pixel LDFW firmware for the Android kernel allows local users to read sensitive information. The ppmpu_set function in ppmpu.c contains the logic error, but Google has not disclosed the incorrect operation or the data exposed. Exploitation requires local low-privileged access, needs no user interaction, and has no published integrity or availability consequence.

The record

CVE
CVE-2022-20591
Published
Dec 16, 2022
Updated
Apr 18, 2025
Vendor
Google
Product
Pixel LDFW firmware
Classifications
CWE-200
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Dec 16, 2022CVE publishedPublication date reported by the CVE source.
  2. Apr 18, 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 privilegesauthenticated

What is affected?

Google · Pixel LDFW firmwareversion=Android kernel

Published CVSS scores

5.5NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
5.5CISA-ADPCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

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-200Exposure of Sensitive Information to an Unauthorized Actor

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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