CVE-2023-32832Public exploit

Root privilege escalation via JPEG driver race

Published Nov 6, 2023 · Updated Apr 25, 2025

Use-after-free in MediaTek's mtk_jpeg driver on Android 12.0 and 13.0 allows local users to gain root privileges without interaction. Concurrent start and unlock operations access shared bufInfo state; the unlock path releases dma-buf references without clearing stale pointers, producing a dangling file descriptor. Exploitation requires local access to the mtk_jpeg interface and winning a high-complexity race; the demonstrated chain gained root on an Asus ROG 6D.

CVSS severity7.0
High
EPSS probability0.11%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Use-after-free in MediaTek's mtk_jpeg driver on Android 12.0 and 13.0 allows local users to gain root privileges without interaction. Concurrent start and unlock operations access shared bufInfo state; the unlock path releases dma-buf references without clearing stale pointers, producing a dangling file descriptor. Exploitation requires local access to the mtk_jpeg interface and winning a high-complexity race; the demonstrated chain gained root on an Asus ROG 6D.

The record

CVE
CVE-2023-32832
Published
Nov 6, 2023
Updated
Apr 25, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-787, CWE-662, T1068
Attack vector
local
Privileges
Unavailable

Timeline

How it unfolded

  1. Nov 6, 2023CVE publishedPublication date reported by the CVE source.
  2. Apr 25, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectorlocal
Required privilegesUnavailable in this record.

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.0NIST NVDCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
7.0CISA-ADPCVSS:3.1/AV:L/AC:H/PR:L/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
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-787Out-of-bounds Write
CWE-662Concurrent Execution using Shared Resource with Improper Synchronization
T1068Exploitation for Privilege Escalation

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo