CVE-2021-22333

CRITICAL

There is an Improper Validation of Array Index vulnerability in Huawei Smartphone. Successful exploitation of this vulnerability may cause code to execute, thus obtaining system permissions.

Affects 2 products across 1 vendor.

CVSS 3.19.8
EPSS0.9%
Percentile59th
PatchPatched
CVSS Vector — Plain English Remotely exploitable over the network, low complexity, no authentication required, no user interaction needed, impact contained to the vulnerable component, full confidentiality impact, full integrity impact, full availability impact.
CWE Weakness Definitions
CWE-129: CWE-129
Related Attack Patterns (CAPEC)
CAPEC-100 Overflow Buffers
via CWE-129

Mapping is CWE-to-CAPEC per MITRE CAPEC 3.9.

◆ AI Analysis — automated analysis, not human-reviewed

A critical vulnerability, CVE-2021-22333, exists in Huawei smartphones due to improper validation of array indices. This flaw could allow an attacker to execute arbitrary code and gain system permissions.

BSID: BS-2021-GLOBAL-078177-C • Model: /workspace/models/qwen2.5-coder-32b-instruct-bf16 • Confidence: HIGH

Is this CVE in your environment?

BreachSpider monitors your ICS/OT environment for vulnerabilities like this one. No agents or network access required. Free to start.

Check My Environment →
Frequently Asked Questions
What is CVE-2021-22333?
A critical vulnerability, CVE-2021-22333, exists in Huawei smartphones due to improper validation of array indices. This flaw could allow an attacker to execute arbitrary code and gain system permissions.
What is the CVSS score for CVE-2021-22333?
CVE-2021-22333 has CVSS 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. EPSS: 0.9%.
Is CVE-2021-22333 actively exploited?
No confirmed active exploitation of CVE-2021-22333 as of 2026-05-30.
How do I remediate CVE-2021-22333?
Priority: IMMEDIATE. Advisory: https://consumer.huawei.com/en/support/bulletin/2021/4/ PSIRT: [email protected]
What systems are affected by CVE-2021-22333?
CVE-2021-22333 affects Huawei Emui, Magic Ui.
Vulnerability Details
CVE IDCVE-2021-22333
BSIDBS-2021-GLOBAL-078177-C BreachSpider Global ID
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published2021-06-03
Last Modified2024-11-21
ICS Relevance0%
Weakness (CWE)
CWE-129
Domains
NETWORK-INFRA
SourceNVD
Official Description

There is an Improper Validation of Array Index vulnerability in Huawei Smartphone. Successful exploitation of this vulnerability may cause code to execute, thus obtaining system permissions.

Source: NIST NVD / MITRE CVE Database

Attack Vector Analysis — CITED Relevance

The vulnerability is exploited by sending a specially crafted payload that takes advantage of the improper validation of array indices in the affected software. This can lead to unauthorized code execution.

Exploitation Likelihood: HIGH

Affected Products
VendorProductAffected Versions
Huawei Emui 9.1.0 9.1.1 10.0.0 10.1.0 10.1.1 11.0.0
Huawei Magic Ui 2.1.1 3.0.0 3.1.0 3.1.1 4.0.0
Remediation
View Vendor Advisory →

Remediation Priority: IMMEDIATE

Vendor PSIRT: [email protected]
Threat Intelligence
● Threat Intelligence Validated: October 2026 | Threat Age: 1960 Days
CISA known-exploitedNot in KEV catalog
Public ExploitNot confirmed
PoC CodeNot confirmed
AI Enrichment Record — provenance & audit hash
Model/workspace/models/qwen2.5-coder-32b-instruct-bf16
ConfidenceHIGH
Enriched At2026-05-24
SHA-512 Audit Hash6afc6e53a603c66467ff413879527e431572bdec7c1e82220e961de4f70cbf0fbb45d45be33c2bf305ef8206a58051f8af8b24a2945da4d75ee1faa38772e5e5
Related CVEs affecting Huawei
CVE-2012-6570 10.0 The HTTP module in the (1) Branch Intelligent Management System (BIMS) and (2... CVE-2009-2271 10.0 The Huawei D100 has (1) a certain default administrator password for the web ... CVE-2014-9134 10.0 Unrestricted file upload vulnerability in Huawei Honor Cube Wireless Router W... CVE-2019-0708 9.8 A remote code execution vulnerability exists in Remote Desktop Services forme... CVE-2021-22348 9.8 There is a Memory Buffer Improper Operation Limit Vulnerability in Huawei Sma...
View all Huawei CVEs →

Critical Severity - Know Your Exposure

A CVSS 9.8 vulnerability in your ICS environment cannot wait. BreachSpider maps critical CVEs to your specific assets and tells you what to fix first.

Create a free account →