CVE-2026-34857 — MEDIUM (4.7)

Vulnerability Description

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

CVSS Score

4.7

MEDIUM

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

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

LOW

Integrity

NONE

Availability

HIGH

Affected Products

Vendor	Product	Versions
Huawei	Harmonyos	5.1.0

Related Weaknesses (CWE)

CWE-362

References

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

FAQ

What is CVE-2026-34857?

CVE-2026-34857 is a vulnerability with a CVSS score of 4.7 (MEDIUM). UAF vulnerability in the communication module. Impact: Successful exploitation of this vulnerability may affect availability.

How severe is CVE-2026-34857?

CVE-2026-34857 has been rated MEDIUM with a CVSS base score of 4.7/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-34857?

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