CVE-2023-32828

Local privilege escalation via VPU integer overflow

Published Oct 2, 2023 · Updated Sep 21, 2024

Integer overflow in the VPU component of affected MediaTek chipsets on Android 12.0 and IOT-v23.0 allows local users to gain System privileges. The VPU performs an integer calculation that overflows and drives a write beyond the intended buffer boundary; no finer code locus is public. Exploitation requires existing System execution privileges, needs no user interaction, and can alter memory to escalate locally.

CVSS severity6.7
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

Integer overflow in the VPU component of affected MediaTek chipsets on Android 12.0 and IOT-v23.0 allows local users to gain System privileges. The VPU performs an integer calculation that overflows and drives a write beyond the intended buffer boundary; no finer code locus is public. Exploitation requires existing System execution privileges, needs no user interaction, and can alter memory to escalate locally.

The record

CVE
CVE-2023-32828
Published
Oct 2, 2023
Updated
Sep 21, 2024
Vendor
MediaTek
Product
MT6891
Classifications
CWE-190, CWE-190, T1068
Attack vector
local
Privileges
admin

Timeline

How it unfolded

  1. Oct 2, 2023CVE publishedPublication date reported by the CVE source.
  2. Sep 21, 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=0 <=*

What conditions does exploitation require?

Attack vectorlocal
Required privilegesadmin

What is affected?

MediaTek · MT6891version=0 <=*
MediaTek · MediaTek MT6785version=0 <=*
MediaTek · MT6853Tversion=0 <=*
MediaTek · MT6893version=0 <=*
MediaTek · MT6885version=0 <=*
MediaTek · MT6873version=0 <=*
MediaTek · MT8195version=0 <=*
MediaTek · MT6877version=0 <=*
MediaTek · MT8395version=0 <=*
MediaTek · MT6853version=0 <=*
MediaTek · MT6771version=0 <=*
MediaTek · MT8390version=0 <=*
MediaTek · MT8188version=0 <=*
MediaTek · MT8183version=0 <=*
MediaTek · MediaTek MT6779version=0 <=*

Published CVSS scores

6.7NIST NVDCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
6.7CISA-ADPCVSS: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.

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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
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-190Integer Overflow or Wraparound
CWE-190Integer Overflow or Wraparound
T1068Exploitation for Privilege Escalation

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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