Huawei HarmonyOS/EMUI Distributed File System out-of-bounds write

CVSS Meta Temp Score
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Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
6.1$5k-$25k0.00

Summaryinfo

A vulnerability, which was classified as critical, was found in Huawei HarmonyOS and EMUI. This issue affects some unknown processing of the component Distributed File System Module. The manipulation results in out-of-bounds write. This vulnerability is known as CVE-2026-41970. Access to the local network is required for this attack. No exploit is available.

Detailsinfo

A vulnerability, which was classified as critical, was found in Huawei HarmonyOS and EMUI (affected version not known). Affected is some unknown functionality of the component Distributed File System Module. The manipulation with an unknown input leads to a out-of-bounds write vulnerability. CWE is classifying the issue as CWE-787. The product writes data past the end, or before the beginning, of the intended buffer. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

Out-of-bounds write vulnerability in the distributed file system module. Impact: Successful exploitation of this vulnerability may affect availability.

The advisory is available at consumer.huawei.com. This vulnerability is traded as CVE-2026-41970 since 04/23/2026. The exploitability is told to be easy. The attack can only be initiated within the local network. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $5k-$25k at the moment (estimation calculated on 05/15/2026).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-30534). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.1
VulDB Meta Temp Score: 6.1

VulDB Base Score: 5.5
VulDB Temp Score: 5.5
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 6.8
CNA Vector (huawei): 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Out-of-bounds write
CWE: CWE-787 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Partially

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

04/23/2026 CVE reserved
05/15/2026 +22 days Advisory disclosed
05/15/2026 +0 days VulDB entry created
05/15/2026 +0 days VulDB entry last update

Sourcesinfo

Vendor: huawei.com

Advisory: consumer.huawei.com
Status: Confirmed

CVE: CVE-2026-41970 (🔒)
GCVE (CVE): GCVE-0-2026-41970
GCVE (VulDB): GCVE-100-364170
EUVD: 🔒

Entryinfo

Created: 05/15/2026 13:48
Updated: 05/15/2026 14:05
Changes: 05/15/2026 13:48 (62), 05/15/2026 14:05 (1)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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