Huawei HarmonyOS 5.0.1/5.1.0 Network race condition

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.8$0-$5k0.00

Summaryinfo

A vulnerability has been found in Huawei HarmonyOS 5.0.1/5.1.0 and classified as critical. This affects an unknown function of the component Network Module. This manipulation causes race condition. This vulnerability is handled as CVE-2025-66327. It is possible to launch the attack on the local host. There is not any exploit available.

Detailsinfo

A vulnerability was found in Huawei HarmonyOS 5.0.1/5.1.0. It has been declared as critical. Affected by this vulnerability is an unknown part of the component Network Module. The manipulation with an unknown input leads to a race condition vulnerability. The CWE definition for the vulnerability is CWE-362. The product contains a code sequence that can run concurrently with other code, and the code sequence requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence that is operating concurrently. As an impact it is known to affect availability. The summary by CVE is:

Race condition vulnerability in the network module. Impact: Successful exploitation of this vulnerability may affect service confidentiality.

It is possible to read the advisory at consumer.huawei.com. This vulnerability is known as CVE-2025-66327 since 11/27/2025. The exploitation appears to be easy. Attacking locally is a requirement. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 12/08/2025).

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

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.8
VulDB Meta Temp Score: 5.8

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

NVD Base Score: 4.7
NVD Vector: 🔒

CNA Base Score: 7.1
CNA Vector (huawei): 🔒

CVSSv2info

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

Exploitinginfo

Class: Race condition
CWE: CWE-362
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: No

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

11/27/2025 CVE reserved
12/08/2025 +11 days Advisory disclosed
12/08/2025 +0 days VulDB entry created
12/08/2025 +0 days VulDB entry last update

Sourcesinfo

Vendor: huawei.com

Advisory: consumer.huawei.com
Status: Confirmed

CVE: CVE-2025-66327 (🔒)
GCVE (CVE): GCVE-0-2025-66327
GCVE (VulDB): GCVE-100-334771

Entryinfo

Created: 12/08/2025 09:43
Updated: 12/08/2025 21:17
Changes: 12/08/2025 09:43 (62), 12/08/2025 21:17 (11)
Complete: 🔍
Cache ID: 216::103

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