CVE-2023-21033

Persistent Wi-Fi denial via unlimited network additions

Published Mar 24, 2023 · Updated Feb 25, 2025

Resource exhaustion in Android 13 WifiManager.addNetwork allows local users to cause a persistent Wi-Fi service interruption by adding networks. WifiConfigManager accepted unlimited saved-network additions from apps that were not device owners, profile owners, or system apps. A low-privileged local app can exhaust the saved-network resource without user interaction, leaving Wi-Fi persistently unavailable.

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

Resource exhaustion in Android 13 WifiManager.addNetwork allows local users to cause a persistent Wi-Fi service interruption by adding networks. WifiConfigManager accepted unlimited saved-network additions from apps that were not device owners, profile owners, or system apps. A low-privileged local app can exhaust the saved-network resource without user interaction, leaving Wi-Fi persistently unavailable.

The record

CVE
CVE-2023-21033
Published
Mar 24, 2023
Updated
Feb 25, 2025
Vendor
Google Cloud
Product
Android
Classifications
CWE-400, T1642
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 24, 2023CVE publishedPublication date reported by the CVE source.
  2. Feb 25, 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-13

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Google Cloud · Androidversion=Android-13

Published CVSS scores

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

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-400Uncontrolled Resource Consumption
T1642Endpoint Denial of Service

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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