CVE-2023-20810

System-privileged information disclosure via invalid IOMMU input

Published Aug 7, 2023 · Updated Oct 17, 2024

Improper input validation in MediaTek IOMMU software on Android 10.0, Android 11.0, and Linux 4.19 allows local users to disclose information. MediaTek has not disclosed the IOMMU input path, validation error, or data exposed by the resulting information leak. Exploitation requires System execution privileges, needs no user interaction, and affects only the listed MediaTek chipsets running those platform versions.

CVSS severity4.4
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

Improper input validation in MediaTek IOMMU software on Android 10.0, Android 11.0, and Linux 4.19 allows local users to disclose information. MediaTek has not disclosed the IOMMU input path, validation error, or data exposed by the resulting information leak. Exploitation requires System execution privileges, needs no user interaction, and affects only the listed MediaTek chipsets running those platform versions.

The record

CVE
CVE-2023-20810
Published
Aug 7, 2023
Updated
Oct 17, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-20
Attack vector
local
Privileges
admin

Timeline

How it unfolded

  1. Aug 7, 2023CVE publishedPublication date reported by the CVE source.
  2. Oct 17, 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

4.4NIST NVDCVSS: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.

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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-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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