EUVD-2026-21844
GHSA-m263-6xmg-c437
6.7
CVSS 3.1
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CVSS Vector
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Attack Vector
Local
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Lifecycle Timeline
1
Analysis Generated
Apr 13, 2026 - 05:27 vuln.today
Description
Out-of-bounds write vulnerability in the file system. Impact: Successful exploitation of this vulnerability may affect availability.
Analysis
Out-of-bounds write in HarmonyOS file system allows local privileged attackers to corrupt memory with high impact on confidentiality, integrity, and availability. The vulnerability affects HarmonyOS across versions and requires high-level local system privileges to exploit, making it a critical concern for multi-user systems and containerized deployments where privilege escalation vectors exist.
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Priority Score
34
Low
Medium
High
Critical
KEV: 0
EPSS: +0.0
CVSS: +34
POC: 0
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External POC / Exploit Code
Leaving vuln.today
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