CVE-2023-36629Public exploit

Local memory disclosure via unchecked configuration index

Published Jan 9, 2024 · Updated Jun 20, 2025

An out-of-bounds read in ST54-android-packages-apps-Nfc before 130-20230215-23W07p0 allows local users to read NFC service memory. NfcStExtensions::getProprietaryConfigSettings uses attacker-controlled byteNb and bitNb values to select a bit from the mPropConfig.config stack array without validating the index. On the tested Xiaomi firmware, any installed application could invoke the exported nfc.st_ext service, exposing memory from the NFC service context.

CVSS severity5.5
Medium
EPSS probability0.37%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

An out-of-bounds read in ST54-android-packages-apps-Nfc before 130-20230215-23W07p0 allows local users to read NFC service memory. NfcStExtensions::getProprietaryConfigSettings uses attacker-controlled byteNb and bitNb values to select a bit from the mPropConfig.config stack array without validating the index. On the tested Xiaomi firmware, any installed application could invoke the exported nfc.st_ext service, exposing memory from the NFC service context.

The record

CVE
CVE-2023-36629
Published
Jan 9, 2024
Updated
Jun 20, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-125, T1005
Attack vector
local
Privileges
Unavailable

Timeline

How it unfolded

  1. Jan 9, 2024CVE publishedPublication date reported by the CVE source.
  2. Jun 20, 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectorlocal
Required privilegesUnavailable in this record.

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

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

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-125Out-of-bounds Read
T1005Data from Local System

Public exploit references

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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