CVE-2021-40039

Service integrity impact via null pointer dereference

Published Jan 7, 2022 · Updated Aug 4, 2024

Null pointer dereference in the camera module of Huawei EMUI, Magic UI, and HarmonyOS allows attackers to affect service integrity. Huawei has not published the affected function, the input that reaches the null pointer, or the incorrect dereference operation beyond naming the camera module. The public records do not identify the attacker position, required privileges, user interaction, or whether the consequence is a hang, crash, or other service interruption.

CVSS severityUnavailable
Unscored
EPSS probability0.60%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Null pointer dereference in the camera module of Huawei EMUI, Magic UI, and HarmonyOS allows attackers to affect service integrity. Huawei has not published the affected function, the input that reaches the null pointer, or the incorrect dereference operation beyond naming the camera module. The public records do not identify the attacker position, required privileges, user interaction, or whether the consequence is a hang, crash, or other service interruption.

The record

CVE
CVE-2021-40039
Published
Jan 7, 2022
Updated
Aug 4, 2024
Vendor
MindSpore
Product
HarmonyOS
Classifications
CWE-476
Attack vector
Unavailable
Privileges
Unavailable

Timeline

How it unfolded

  1. Jan 7, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 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?

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  1. Affected versionversion=2.0

What conditions does exploitation require?

Attack vectorUnavailable in this record.
Required privilegesUnavailable in this record.

What is affected?

MindSpore · HarmonyOSversion=2.0
MindSpore · EMUIversion=11.0.0; version=12.0.0
MindSpore · Magic UIversion=4.0.0

Published CVSS scores

No CVSS assessment is available in this record.

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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
VectorUnavailable
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-476NULL Pointer Dereference

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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