CVE-2022-26473

Local privilege escalation via vdec fmt use-after-free

Published Oct 7, 2022 · Updated Aug 3, 2024

Use-after-free in MediaTek Android 12.0 vdec fmt allows local users to gain System privileges via improper locking. The vdec fmt component can access memory after it has been freed when concurrent operations are not synchronized correctly. Exploitation requires high local privileges but no user interaction, and can compromise confidentiality, integrity, and availability at System level.

CVSS severity6.7
Medium
EPSS probability0.11%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Use-after-free in MediaTek Android 12.0 vdec fmt allows local users to gain System privileges via improper locking. The vdec fmt component can access memory after it has been freed when concurrent operations are not synchronized correctly. Exploitation requires high local privileges but no user interaction, and can compromise confidentiality, integrity, and availability at System level.

The record

CVE
CVE-2022-26473
Published
Oct 7, 2022
Updated
Aug 3, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-667, T1068
Attack vector
local
Privileges
admin

Timeline

How it unfolded

  1. Oct 7, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 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

6.7NVDCVSS: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 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-667Improper Locking
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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