CVE-2023-21046

Local information disclosure via incorrect metadata bounds check

Published Mar 24, 2023 · Updated Feb 26, 2025

Out-of-bounds read in Google Android Camera HAL allows local users with System privileges to disclose process memory via crafted metadata. ConvertToHalMetadata in aidl_utils.cc performs an incorrect bounds check while converting AIDL camera metadata, allowing data to be read past the intended buffer. Exploitation requires System execution privileges, needs no user interaction, and has no reported integrity or availability impact.

CVSS severity4.4
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

Out-of-bounds read in Google Android Camera HAL allows local users with System privileges to disclose process memory via crafted metadata. ConvertToHalMetadata in aidl_utils.cc performs an incorrect bounds check while converting AIDL camera metadata, allowing data to be read past the intended buffer. Exploitation requires System execution privileges, needs no user interaction, and has no reported integrity or availability impact.

The record

CVE
CVE-2023-21046
Published
Mar 24, 2023
Updated
Feb 26, 2025
Vendor
Google
Product
Android Camera HAL
Classifications
CWE-787
Attack vector
local
Privileges
admin

Timeline

How it unfolded

  1. Mar 24, 2023CVE publishedPublication date reported by the CVE source.
  2. Feb 26, 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?

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  1. Affected versionversion=Android kernel

What conditions does exploitation require?

Attack vectorlocal
Required privilegesadmin

What is affected?

Google · Android Camera HALversion=Android kernel

Published CVSS scores

4.4CISA-ADPCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
4.4NVDCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

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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
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-787Out-of-bounds Write

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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