CVE-2022-20464

Call-audio disclosure via audio-processor logic error

Published Oct 14, 2022 · Updated May 15, 2025

Information disclosure in the Android kernel allows local users to record audio during a phone call through the audio processor. Various functions in ap_input_processor.c contain a logic error that permits audio recording while a phone call is active. User-level execution is required, but no user interaction is required; the disclosed information is the captured call audio.

CVSS severity5.5
Medium
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 the Android kernel allows local users to record audio during a phone call through the audio processor. Various functions in ap_input_processor.c contain a logic error that permits audio recording while a phone call is active. User-level execution is required, but no user interaction is required; the disclosed information is the captured call audio.

The record

CVE
CVE-2022-20464
Published
Oct 14, 2022
Updated
May 15, 2025
Vendor
Google Cloud
Product
Android
Classifications
CWE-693, T1123
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 14, 2022CVE publishedPublication date reported by the CVE source.
  2. May 15, 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 Cloud · Androidversion=Android kernel

Published CVSS scores

5.5NIST National Vulnerability DatabaseCVSS: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-693Protection Mechanism Failure
T1123Audio Capture

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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