CVE-2022-21788

Local privilege escalation via ignored scp error

Published Aug 1, 2022 · Updated Aug 3, 2024

Local privilege escalation in MediaTek scp on MT6879, MT6895, and MT6983 with Android 12.0 allows local users to gain elevated access. The scp error path detects an error condition but takes no handling action, leaving execution in an undefined state. Exploitation requires existing System execution privileges and no user interaction; MediaTek has not disclosed the triggering input or resulting privilege boundary.

CVSS severity6.7
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

Local privilege escalation in MediaTek scp on MT6879, MT6895, and MT6983 with Android 12.0 allows local users to gain elevated access. The scp error path detects an error condition but takes no handling action, leaving execution in an undefined state. Exploitation requires existing System execution privileges and no user interaction; MediaTek has not disclosed the triggering input or resulting privilege boundary.

The record

CVE
CVE-2022-21788
Published
Aug 1, 2022
Updated
Aug 3, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-390, T1404
Attack vector
local
Privileges
admin

Timeline

How it unfolded

  1. Aug 1, 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-390Detection of Error Condition Without Action
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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