CVE-2023-20935

Local information disclosure via unchecked NNAPI vector indexes

Published Apr 19, 2023 · Updated Feb 5, 2025

Out-of-bounds read in Android 11, 12, 12L, and 13 allows local users to disclose process memory through malformed NNAPI FMQ data. NNAPI FMQ deserialize utilities in ExecutionBurstController, ExecutionBurstServer, and ExecutionBurstUtils index vectors without validating supplied indexes and use unchecked operator[] access. A low-privileged local process can trigger the read without user interaction, but the documented consequence is limited to information disclosure.

CVSS severity5.5
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

Out-of-bounds read in Android 11, 12, 12L, and 13 allows local users to disclose process memory through malformed NNAPI FMQ data. NNAPI FMQ deserialize utilities in ExecutionBurstController, ExecutionBurstServer, and ExecutionBurstUtils index vectors without validating supplied indexes and use unchecked operator[] access. A low-privileged local process can trigger the read without user interaction, but the documented consequence is limited to information disclosure.

The record

CVE
CVE-2023-20935
Published
Apr 19, 2023
Updated
Feb 5, 2025
Vendor
Google Cloud
Product
Android
Classifications
CWE-125
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 19, 2023CVE publishedPublication date reported by the CVE source.
  2. Feb 5, 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-11 Android-12 Android-12L Android-13

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Google Cloud · Androidversion=Android-11 Android-12 Android-12L Android-13

Published CVSS scores

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

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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