CVE-2021-40050

CRITICAL

There is an out-of-bounds read vulnerability in the IFAA module. Successful exploitation of this vulnerability may cause stack overflow.

Affects 3 products across 1 vendor.

CVSS 3.19.8
EPSS1.1%
Percentile65th
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-125: Out-of-Bounds Read

Software reads data past the boundary of an allocated buffer, leaking sensitive information or causing crashes.

Related Attack Patterns (CAPEC)
CAPEC-540 Overread Buffers
via CWE-125

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

◆ AI Analysis — automated analysis, not human-reviewed

An out-of-bounds read vulnerability in the IFAA module can lead to stack overflow, potentially allowing an attacker to execute arbitrary code or cause a denial of service.

BSID: BS-2022-GLOBAL-307101-C • Model: /workspace/models/qwen2.5-coder-32b-instruct-bf16 • Confidence: HIGH

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Frequently Asked Questions
What is CVE-2021-40050?
An out-of-bounds read vulnerability in the IFAA module can lead to stack overflow, potentially allowing an attacker to execute arbitrary code or cause a denial of service.
What is the CVSS score for CVE-2021-40050?
CVE-2021-40050 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: 1.1%.
Is CVE-2021-40050 actively exploited?
No confirmed active exploitation of CVE-2021-40050 as of 2026-05-30.
How do I remediate CVE-2021-40050?
Priority: IMMEDIATE. Advisory: https://consumer.huawei.com/en/support/bulletin/2022/3/ PSIRT: [email protected]
What systems are affected by CVE-2021-40050?
CVE-2021-40050 affects Huawei Emui, Magic Ui, Harmonyos.
Vulnerability Details
CVE IDCVE-2021-40050
BSIDBS-2022-GLOBAL-307101-C BreachSpider Global ID
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published2022-03-10
Last Modified2024-11-21
ICS Relevance15%
Weakness (CWE)
Domains
NETWORK-INFRA
SourceNVD
Official Description

There is an out-of-bounds read vulnerability in the IFAA module. Successful exploitation of this vulnerability may cause stack overflow.

Source: NIST NVD / MITRE CVE Database

Attack Vector Analysis — CITED Relevance

The vulnerability is exploited by sending a specially crafted request to the IFAA module, which results in an out-of-bounds read. This can be triggered remotely, and no user interaction is required.

Exploitation Likelihood: CRITICAL

Affected Products
VendorProductAffected Versions
Huawei Emui 10.1.0 10.1.1 11.0.0 11.0.1 12.0.0
Huawei Magic Ui 3.1.0 3.1.1 4.0.0
Huawei Harmonyos 2.0
Remediation
View Vendor Advisory →

Remediation Priority: IMMEDIATE

Vendor PSIRT: [email protected]
Threat Intelligence
● Threat Intelligence Validated: October 2026 | Threat Age: 1680 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 Hash17dd5dd10565241d9a6e5d900a4958245b2773a8a9c6c763fd6ae0b7145c266371ada5e23ecf7c15c517f217e85a42eab8a7de151602b0fce255ecd59ab76a20
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