CVE-2024-20095

Local information disclosure via missing m4u bounds check

Published Oct 7, 2024 · Updated Oct 27, 2024

Out-of-bounds read in MediaTek m4u on Android 12.0, 13.0, 14.0, and 15.0 allows local users with System privileges to disclose information. Within m4u, a missing bounds check permits a memory read to extend beyond the intended buffer; MediaTek has not disclosed the affected function or input path. Exploitation requires existing System privileges, needs no user interaction, and is limited to 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 m4u on Android 12.0, 13.0, 14.0, and 15.0 allows local users with System privileges to disclose information. Within m4u, a missing bounds check permits a memory read to extend beyond the intended buffer; MediaTek has not disclosed the affected function or input path. Exploitation requires existing System privileges, needs no user interaction, and is limited to local information disclosure.

The record

CVE
CVE-2024-20095
Published
Oct 7, 2024
Updated
Oct 27, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-125
Attack vector
local
Privileges
admin

Timeline

How it unfolded

  1. Oct 7, 2024CVE publishedPublication date reported by the CVE source.
  2. Oct 27, 2024Record 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

4.4NVDCVSS: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

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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