CVE-2022-40761

Trusted-application DoS via invalid heap free

Published Sep 16, 2022 · Updated Aug 3, 2024

Denial of service in Samsung mTower through 0.3.0 allows trusted applications to crash the TEE kernel via a crafted heap layout. In tee_obj_free, an uninitialized or invalid object attribute pointer can be passed to free after heap disruption during utee_cryp_obj_alloc and TEE_AllocateOperation processing. The trigger requires a trusted application able to invoke the TEE allocation APIs; successful exploitation interrupts the trusted execution environment, while confidentiality and integrity effects are not reported.

CVSS severity7.5
High
EPSS probability1.68%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Denial of service in Samsung mTower through 0.3.0 allows trusted applications to crash the TEE kernel via a crafted heap layout. In tee_obj_free, an uninitialized or invalid object attribute pointer can be passed to free after heap disruption during utee_cryp_obj_alloc and TEE_AllocateOperation processing. The trigger requires a trusted application able to invoke the TEE allocation APIs; successful exploitation interrupts the trusted execution environment, while confidentiality and integrity effects are not reported.

The record

CVE
CVE-2022-40761
Published
Sep 16, 2022
Updated
Aug 3, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-1284, T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 16, 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 privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.5NVDCVSS: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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-1284Improper Validation of Specified Quantity in Input
T1499Endpoint Denial of Service

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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