CVE-2022-20227

Information disclosure via oversized USB gadget requests

Published Jul 13, 2022 · Updated Aug 3, 2024

Out-of-bounds reads in the Android kernel USB gadget driver allow local users to disclose heap data through oversized USB requests. Endpoint-zero handlers accepted host-requested lengths beyond their buffers, while the RNDIS path parsed undersized RNDIS_MSG_SET commands before validating their size. Exploitation requires User-level execution privileges and a reachable USB gadget interface, but no user interaction; exposed memory is the bounded consequence.

CVSS severity5.5
Medium
EPSS probability0.14%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Out-of-bounds reads in the Android kernel USB gadget driver allow local users to disclose heap data through oversized USB requests. Endpoint-zero handlers accepted host-requested lengths beyond their buffers, while the RNDIS path parsed undersized RNDIS_MSG_SET commands before validating their size. Exploitation requires User-level execution privileges and a reachable USB gadget interface, but no user interaction; exposed memory is the bounded consequence.

The record

CVE
CVE-2022-20227
Published
Jul 13, 2022
Updated
Aug 3, 2024
Vendor
Google Cloud
Product
Android
Classifications
CWE-125, CAPEC-540
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 13, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 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?

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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

2.1NVDAV:L/AC:L/Au:N/C:P/I:N/A:N
5.5NVDCVSS: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-125Out-of-bounds Read
CAPEC-540Overread Buffers

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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