CVE-2023-32811

Local privilege escalation via unchecked driver input

Published Sep 4, 2023 · Updated Oct 1, 2024

An out-of-bounds write in MediaTek connectivity drivers for Android, IoT Yocto, and Yocto Project allows local users to escalate privileges. The driver improperly validates input before a memory write, permitting data to be written beyond the intended buffer. Exploitation requires existing System execution privileges on a device with an affected MediaTek chipset, but no user interaction.

CVSS severity6.7
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

An out-of-bounds write in MediaTek connectivity drivers for Android, IoT Yocto, and Yocto Project allows local users to escalate privileges. The driver improperly validates input before a memory write, permitting data to be written beyond the intended buffer. Exploitation requires existing System execution privileges on a device with an affected MediaTek chipset, but no user interaction.

The record

CVE
CVE-2023-32811
Published
Sep 4, 2023
Updated
Oct 1, 2024
Vendor
Yocto Project
Product
Yocto Project
Classifications
CWE-787, CWE-20, T1068
Attack vector
local
Privileges
admin

Timeline

How it unfolded

  1. Sep 4, 2023CVE publishedPublication date reported by the CVE source.
  2. Oct 1, 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?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=4.0

What conditions does exploitation require?

Attack vectorlocal
Required privilegesadmin

What is affected?

Yocto Project · Yocto Projectversion=4.0
Google · Androidversion=12.0; version=13.0
MediaTek · IoT Yoctoversion=23.0

Published CVSS scores

6.7CISA ADP VulnrichmentCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

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-787Out-of-bounds Write
CWE-20Improper Input Validation
T1068Exploitation for Privilege Escalation

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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