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OpenHarmony CVE-2026-27648

| EUVD-2026-30829 HIGH
Out-of-bounds Write (CWE-787)
2026-05-19 OpenHarmony GHSA-fpp4-pf9w-p6rr
RCE Buffer Overflow Memory Corruption
8.8
CVSS 3.1
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CVSS VectorNVD

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

Lifecycle Timeline

1
Analysis Generated
May 19, 2026 - 03:46 vuln.today

DescriptionNVD

in OpenHarmony v6.0 and prior versions allow a remote attacker arbitrary code execution in pre-installed apps.

AnalysisAI

Arbitrary code execution in OpenHarmony v6.0 and earlier enables remote attackers with low privileges to execute code within pre-installed apps via an out-of-bounds write (CWE-787). The CVSS 8.8 vector reflects network-reachable exploitation with low complexity and no user interaction once minimal privileges are obtained, yielding high impact across confidentiality, integrity, and availability. …

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RemediationAI

Within 24 hours: Identify all OpenHarmony v6.0 and earlier systems in your environment and assess their network exposure. Within 7 days: Implement network segmentation to restrict vulnerable device connectivity and enforce least-privilege policies on affected systems. …

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CVE-2026-27648 vulnerability details – vuln.today
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