Huawei HarmonyOS/EMUI LBS Module privilege context switching

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.2$5k-$25k0.18

Summaryinfo

A vulnerability, which was classified as critical, was found in Huawei HarmonyOS and EMUI. Affected by this issue is some unknown functionality of the component LBS Module. The manipulation results in privilege context switching. This vulnerability is reported as CVE-2026-34853. The attack requires a local approach. No exploit exists.

Detailsinfo

A vulnerability was found in Huawei HarmonyOS and EMUI (affected version not known). It has been classified as critical. Affected is some unknown functionality of the component LBS Module. The manipulation with an unknown input leads to a privilege context switching vulnerability. CWE is classifying the issue as CWE-270. The product does not properly manage privileges while it is switching between different contexts that have different privileges or spheres of control. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

Permission bypass vulnerability in the LBS module. Impact: Successful exploitation of this vulnerability may affect availability.

The advisory is shared for download at consumer.huawei.com. This vulnerability is traded as CVE-2026-34853 since 03/31/2026. The exploitability is told to be easy. The attack needs to be approached locally. Additional levels of successful authentication are required for exploitation. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $5k-$25k (estimation calculated on 04/13/2026). The MITRE ATT&CK project declares the attack technique as T1068.

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

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

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Vendor

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.2
VulDB Meta Temp Score: 7.2

VulDB Base Score: 6.7
VulDB Temp Score: 6.7
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 7.7
CNA Vector (huawei): 🔒

CVSSv2info

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

Exploitinginfo

Class: Privilege context switching
CWE: CWE-270 / CWE-266
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

03/31/2026 CVE reserved
04/13/2026 +13 days Advisory disclosed
04/13/2026 +0 days VulDB entry created
04/13/2026 +0 days VulDB entry last update

Sourcesinfo

Vendor: huawei.com

Advisory: consumer.huawei.com
Status: Confirmed

CVE: CVE-2026-34853 (🔒)
GCVE (CVE): GCVE-0-2026-34853
GCVE (VulDB): GCVE-100-357072

Entryinfo

Created: 04/13/2026 07:38
Changes: 04/13/2026 07:38 (61)
Complete: 🔍
Cache ID: 216::103

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