CVE-2021-36989Network attack vector

Kernel privilege escalation

Published Oct 28, 2021 · Updated Aug 4, 2024

Kernel crash in Huawei EMUI 10.1.1 and 11.0.0 allows attackers to escalate privileges via unspecified vectors. Huawei has not published the affected kernel component, the input or operation that triggers the crash, or the permission boundary that fails. The disclosed material does not establish whether exploitation is remote or local, whether authentication is required, or whether the crash interrupts service.

CVSS severity9.8
Critical
EPSS probability0.75%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Kernel crash in Huawei EMUI 10.1.1 and 11.0.0 allows attackers to escalate privileges via unspecified vectors. Huawei has not published the affected kernel component, the input or operation that triggers the crash, or the permission boundary that fails. The disclosed material does not establish whether exploitation is remote or local, whether authentication is required, or whether the crash interrupts service.

The record

CVE
CVE-2021-36989
Published
Oct 28, 2021
Updated
Aug 4, 2024
Vendor
MindSpore
Product
EMUI
Classifications
CWE-276
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 28, 2021CVE 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?

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

  1. Affected versionversion=10.1.1
  2. Affected versionversion=11.0.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

MindSpore · EMUIversion=10.1.1; version=11.0.0

Published CVSS scores

7.5NIST National Vulnerability DatabaseAV:N/AC:L/Au:N/C:P/I:P/A:P
9.8NIST National Vulnerability DatabaseCVSS:3.1/AV:N/AC:L/PR:N/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.

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)
Vectornetwork
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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