EUVD-2026-21879
GHSA-xvjp-783h-vvhp
5.1
CVSS 3.1
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CVSS Vector
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
Apr 13, 2026 - 07:29 vuln.today
Tags
Description
Out-of-bounds write vulnerability in the WEB module.Impact: Successful exploitation of this vulnerability will affect availability and confidentiality.
Analysis
Out-of-bounds write in Huawei HarmonyOS WEB module allows local attackers without privileges to cause integrity and availability impact through a classic buffer overflow condition. CVSS 5.1 (moderate) reflects local-only attack vector and limited scope, though the vulnerability affects a core web rendering component. …
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Priority Score
26
Low
Medium
High
Critical
KEV: 0
EPSS: +0.0
CVSS: +26
POC: 0
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External POC / Exploit Code
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