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HarmonyOS EMUI CVE-2026-49303

| EUVDEUVD-2026-60076 MEDIUM
Permissions, Privileges, and Access Controls (CWE-264)
2026-08-17 huawei GHSA-8v45-5864-7xc6
5.1
CVSS 3.1 · Vendor: huawei
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Severity by source

Vendor (huawei) PRIMARY
5.1 MEDIUM
AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L
vuln.today AI
5.1 MEDIUM

Local execution by any app (PR:N, AV:L) is sufficient; no confidentiality loss; integrity and availability impact are limited to the notification module.

3.1 AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L
4.0 AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N

Primary rating from Vendor (huawei).

CVSS VectorVendor: huawei

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L
Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
Low

Lifecycle Timeline

1
Analysis Generated
Aug 17, 2026 - 13:36 vuln.today

DescriptionCVE.org

Permission control vulnerability in the notification module. Impact: Successful exploitation of this vulnerability may affect availability.

AnalysisAI

Improper permission enforcement in the notification module of Huawei HarmonyOS and EMUI permits a local, unprivileged process to interfere with notification handling, resulting in limited integrity and availability impact. Affected versions span HarmonyOS 4.0.0 through 4.3.1 and EMUI 14.0.0 through 15.0.0 across Huawei consumer devices. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
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Delivery
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Exploit
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Execution
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Impact
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Vulnerability AssessmentAI

Exploitation Exploitation requires that the attacker's code is already executing locally on the target device - for example, as an installed application running in the standard app sandbox. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The CVSS 5.1 base score with vector AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L reflects a moderate local privilege escalation with no confidentiality impact. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario Full exploit scenario with step-by-step reproduction available after sign-in.
Remediation Huawei addressed this vulnerability through its August 2026 security bulletin (https://consumer.huawei.com/en/support/bulletin/2026/8/); users should apply the OTA update distributed via the HarmonyOS or EMUI system update mechanism, which is the primary remediation path. … Detailed patch versions, workarounds, and compensating controls in full report.

Threat intelligence, references, and detailed analysis are available after sign-in.

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CVE-2026-49303 vulnerability details – vuln.today

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