CVE-2022-38155Public exploit

TEE kernel crash via unchecked allocation size

Published Aug 11, 2022 · Updated Aug 3, 2024

Resource exhaustion in Samsung mTower 0.3.0 and earlier allows attackers controlling a trusted application to crash the TEE kernel. TEE_Malloc passes an attacker-controlled len value to tee_user_mem_alloc without checking or limiting the requested allocation size. Execution from a trusted application is required, and a sufficiently large request exhausts constrained memory and interrupts the device by crashing its TEE kernel.

CVSS severity7.5
High
EPSS probability1.02%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Resource exhaustion in Samsung mTower 0.3.0 and earlier allows attackers controlling a trusted application to crash the TEE kernel. TEE_Malloc passes an attacker-controlled len value to tee_user_mem_alloc without checking or limiting the requested allocation size. Execution from a trusted application is required, and a sufficiently large request exhausts constrained memory and interrupts the device by crashing its TEE kernel.

The record

CVE
CVE-2022-38155
Published
Aug 11, 2022
Updated
Aug 3, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-770, CAPEC-130, T1499.004
Attack vector
local
Privileges
Unavailable

Timeline

How it unfolded

  1. Aug 11, 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 privilegesUnavailable in this record.

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/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
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-770Allocation of Resources Without Limits or Throttling
CAPEC-130Excessive Allocation
T1499.004Application or System Exploitation

Public exploit references

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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