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CVE

CVE-2026-34856

UAF vulnerability in the communication module. Impact: Successful exploitation of this vulnerability may affect availabi

UAF vulnerability in the communication module. Impact: Successful exploitation of this vulnerability may affect availability.

HIGH · CVSS 7.3 EPSS 5e-05
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-362Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
▤

Affected Products & Versions

1
huawei harmonyosall versions
▣

Scoring & Timeline

7.3
HIGH · CVSS v3.1 · psirt@huawei.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD13 Apr 2026 · 04:16 AM
CVSS VectorCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
no
Technical impact
partial
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
🔗

References & Sources

2
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://consumer.huawei.com/en/support/bulletin/2026/4/Vendor Advisory
https://consumer.huawei.com/en/support/bulletinwearables/2026/4/Vendor Advisory
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