CVE-2026-34856 — HIGH (7.3)

Vulnerability Description

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

CVSS Score

7.3

HIGH

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

LOW

Integrity

LOW

Availability

HIGH

Affected Products

Vendor	Product	Versions
Huawei	Harmonyos	6.0.0

Related Weaknesses (CWE)

CWE-362

References

https://consumer.huawei.com/en/support/bulletin/2026/4/Vendor Advisory
https://consumer.huawei.com/en/support/bulletinwearables/2026/4/Vendor Advisory

FAQ

What is CVE-2026-34856?

CVE-2026-34856 is a vulnerability with a CVSS score of 7.3 (HIGH). UAF vulnerability in the communication module. Impact: Successful exploitation of this vulnerability may affect availability.

How severe is CVE-2026-34856?

CVE-2026-34856 has been rated HIGH with a CVSS base score of 7.3/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-34856?

Check the references section above for vendor advisories and patch information. Affected products include: Huawei Harmonyos.