Huawei HarmonyOS 6.0.0 HDC Module out-of-bounds

CVSS Meta Temp Score
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Current Exploit Price (≈)
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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.
5.4$0-$5k0.00

Summaryinfo

A vulnerability was found in Huawei HarmonyOS 6.0.0. It has been classified as critical. This affects an unknown function of the component HDC Module. This manipulation causes out-of-bounds. This vulnerability is handled as CVE-2026-24921. 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 6.0.0. It has been declared as critical. Affected by this vulnerability is an unknown code block of the component HDC Module. The manipulation with an unknown input leads to a out-of-bounds vulnerability. The CWE definition for the vulnerability is CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Address read vulnerability in the HDC module. Impact: Successful exploitation of this vulnerability will affect availability and confidentiality.

It is possible to read the advisory at consumer.huawei.com. This vulnerability is known as CVE-2026-24921 since 01/28/2026. The exploitation appears to be easy. Attacking locally is a requirement. The exploitation needs additional levels of successful authentication. 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 02/11/2026).

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

Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

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Vendor

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Version

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.4
VulDB Meta Temp Score: 5.4

VulDB Base Score: 4.2
VulDB Temp Score: 4.2
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 7.1
NVD Vector: 🔒

CNA Base Score: 4.8
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
CWE: CWE-125 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
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

01/28/2026 CVE reserved
02/06/2026 +9 days Advisory disclosed
02/06/2026 +0 days VulDB entry created
02/11/2026 +5 days VulDB entry last update

Sourcesinfo

Vendor: huawei.com

Advisory: consumer.huawei.com
Status: Confirmed

CVE: CVE-2026-24921 (🔒)
GCVE (CVE): GCVE-0-2026-24921
GCVE (VulDB): GCVE-100-344671

Entryinfo

Created: 02/06/2026 12:04
Updated: 02/11/2026 07:58
Changes: 02/06/2026 12:04 (63), 02/11/2026 07:58 (11)
Complete: 🔍
Cache ID: 216::103

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