CVE-2021-46834

Local resource disclosure via permission bypass

Published Sep 20, 2022 · Updated May 28, 2025

Permission bypass in Huawei HUAWEI P50 Pro firmware 102.0.0.225 allows local attackers to access device resources via cross-device task management. Insufficient permission verification in the cross-device task management function permits an attacker device to access resources after the attacked device initiates the task. Exploitation requires the victim handset to start cross-device task management with the attacker device, and the documented impact is limited to confidentiality of certain resources.

CVSS severity4.0
Medium
EPSS probability0.16%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Permission bypass in Huawei HUAWEI P50 Pro firmware 102.0.0.225 allows local attackers to access device resources via cross-device task management. Insufficient permission verification in the cross-device task management function permits an attacker device to access resources after the attacked device initiates the task. Exploitation requires the victim handset to start cross-device task management with the attacker device, and the documented impact is limited to confidentiality of certain resources.

The record

CVE
CVE-2021-46834
Published
Sep 20, 2022
Updated
May 28, 2025
Vendor
Huawei Technologies Co., Ltd.
Product
HUAWEI P50 Pro
Classifications
CWE-276
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 20, 2022CVE publishedPublication date reported by the CVE source.
  2. May 28, 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?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=102.0.0.225(C00E220R3P4)

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Huawei Technologies Co., Ltd. · HUAWEI P50 Proversion=102.0.0.225(C00E220R3P4)

Published CVSS scores

4.0Huawei PSIRTCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
5.5NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
3.7Huawei PSIRTCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:F/RL:O/RC:C

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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-276Incorrect Default Permissions

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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