CVE-2026-34854

UAF vulnerability in the kernel module. Impact: Successful exploitation of this vulnerability will affect availability and confidentiality.

CVSS v3 5.7 MEDIUM

5.7^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 0.5 / Impact : 5.2

Attack Vector LOCAL

Attack Complexity HIGH

Privileges Required HIGH

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://consumer.huawei.com/en/support/bulletin/2026/4/	Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:huawei:harmonyos:4.0.0:::::::*
	cpe:2.3:o:huawei:harmonyos:4.2.0:::::::*
	cpe:2.3:o:huawei:harmonyos:4.3.0:::::::*
	cpe:2.3:o:huawei:harmonyos:4.3.1:::::::*
	cpe:2.3:o:huawei:harmonyos:5.1.0:::::::*
	cpe:2.3:o:huawei:harmonyos:6.0.0:::::::*

Configuration 2 (hide)

OR	cpe:2.3:o:huawei:emui:14.0.0:::::::*
	cpe:2.3:o:huawei:emui:14.2.0:::::::*
	cpe:2.3:o:huawei:emui:15.0.0:::::::*

History

15 Apr 2026, 20:19

Type	Values Removed	Values Added
CPE		cpe:2.3:o:huawei:harmonyos:6.0.0:::::::* cpe:2.3:o:huawei:harmonyos:4.3.1:::::::* cpe:2.3:o:huawei:emui:15.0.0:::::::* cpe:2.3:o:huawei:harmonyos:4.0.0:::::::* cpe:2.3:o:huawei:harmonyos:4.2.0:::::::* cpe:2.3:o:huawei:harmonyos:4.3.0:::::::* cpe:2.3:o:huawei:emui:14.2.0:::::::* cpe:2.3:o:huawei:harmonyos:5.1.0:::::::* cpe:2.3:o:huawei:emui:14.0.0:::::::*
References	~~() https://consumer.huawei.com/en/support/bulletin/2026/4/ -~~	() https://consumer.huawei.com/en/support/bulletin/2026/4/ - Vendor Advisory
First Time		Huawei emui Huawei harmonyos Huawei

13 Apr 2026, 05:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-04-13 05:16

Updated : 2026-04-15 20:19

NVD link : CVE-2026-34854

Mitre link : CVE-2026-34854

CVE.ORG link : CVE-2026-34854

JSON object : View

Products Affected

huawei

emui
harmonyos

CWE

CWE-416

Use After Free

{"id": "CVE-2026-34854", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "psirt@huawei.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.7, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "HIGH", "privilegesRequired": "HIGH", "confidentialityImpact": "HIGH"}, "impactScore": 5.2, "exploitabilityScore": 0.5}, {"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.1, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.2, "exploitabilityScore": 1.8}]}, "published": "2026-04-13T05:16:03.200", "references": [{"url": "https://consumer.huawei.com/en/support/bulletin/2026/4/", "tags": ["Vendor Advisory"], "source": "psirt@huawei.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "psirt@huawei.com", "description": [{"lang": "en", "value": "CWE-416"}]}], "descriptions": [{"lang": "en", "value": "UAF vulnerability in the kernel module.\nImpact: Successful exploitation of this vulnerability will affect availability and confidentiality."}], "lastModified": "2026-04-15T20:19:30.063", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:huawei:harmonyos:4.0.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "8198CDB2-4BC5-411A-8736-615A531FC545"}, {"criteria": "cpe:2.3:o:huawei:harmonyos:4.2.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "2401DE15-9DBF-4645-A261-8C24D57C6342"}, {"criteria": "cpe:2.3:o:huawei:harmonyos:4.3.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "082BBC06-A0B2-481E-BF6F-56180E17ABEF"}, {"criteria": "cpe:2.3:o:huawei:harmonyos:4.3.1:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "6EA69843-EC8D-42E2-900E-017D2B502E9E"}, {"criteria": "cpe:2.3:o:huawei:harmonyos:5.1.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "E39DE6A6-CBE6-4086-93CD-113D1B3BA730"}, {"criteria": "cpe:2.3:o:huawei:harmonyos:6.0.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "0EBE30DD-E146-4A6A-BE68-DEF9D4D0B2A8"}], "operator": "OR"}]}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:huawei:emui:14.0.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "32FBF39A-164F-4F98-AB49-28C50A430C36"}, {"criteria": "cpe:2.3:o:huawei:emui:14.2.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "4AA76C33-8D23-490B-B620-C24EDCC86A56"}, {"criteria": "cpe:2.3:o:huawei:emui:15.0.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "888C5BD7-421B-4A85-8719-BFEE3C215527"}], "operator": "OR"}]}], "sourceIdentifier": "psirt@huawei.com"}