CVE-2022-32638

Local privilege escalation via ISP TOCTOU race

Published Jan 3, 2023 · Updated Apr 10, 2025

A TOCTOU race in the MediaTek ISP component on Android 11.0 through 13.0 allows local users to gain elevated privileges. The component checks a state and later uses it without preventing a concurrent change, permitting an out-of-bounds write during the race. Exploitation requires existing System execution privileges and no user interaction; successful exploitation grants higher local privileges.

CVSS severity6.4
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

A TOCTOU race in the MediaTek ISP component on Android 11.0 through 13.0 allows local users to gain elevated privileges. The component checks a state and later uses it without preventing a concurrent change, permitting an out-of-bounds write during the race. Exploitation requires existing System execution privileges and no user interaction; successful exploitation grants higher local privileges.

The record

CVE
CVE-2022-32638
Published
Jan 3, 2023
Updated
Apr 10, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-367, T1404
Attack vector
local
Privileges
Unavailable

Timeline

How it unfolded

  1. Jan 3, 2023CVE publishedPublication date reported by the CVE source.
  2. Apr 10, 2025Record 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 privilegesUnavailable in this record.

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

6.4CISA-ADPCVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
6.4NIST NVDCVSS:3.1/AV:L/AC:H/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
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-367Time-of-check Time-of-use (TOCTOU) Race Condition
T1404Exploitation 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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