CVE-2023-20606

Local information disclosure via unchecked APUSYS read

Published Feb 6, 2023 · Updated Mar 26, 2025

Out-of-bounds read in MediaTek APUSYS on Android 12.0 and Android 12.1 allows local users to disclose memory. APUSYS omits a bounds check before reading data, allowing the read to extend beyond the intended buffer. Exploitation requires System execution privileges on a device using an MT6879, MT6895, or MT6983 chipset; no user interaction is required, and the documented consequence is local information disclosure.

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 MediaTek APUSYS on Android 12.0 and Android 12.1 allows local users to disclose memory. APUSYS omits a bounds check before reading data, allowing the read to extend beyond the intended buffer. Exploitation requires System execution privileges on a device using an MT6879, MT6895, or MT6983 chipset; no user interaction is required, and the documented consequence is local information disclosure.

The record

CVE
CVE-2023-20606
Published
Feb 6, 2023
Updated
Mar 26, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-125, CWE-20
Attack vector
local
Privileges
admin

Timeline

How it unfolded

  1. Feb 6, 2023CVE publishedPublication date reported by the CVE source.
  2. Mar 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectorlocal
Required privilegesadmin

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

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

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 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-125Out-of-bounds Read
CWE-20Improper Input Validation

Public exploit references

No public exploit references are available in this record.

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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