Vulnerability · Published Apr 13, 2026 · Assigned by huawei

CVE-2026-34856

High 7.3

In plain English

A high-severity race condition in HarmonyOS from Huawei. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.1% (higher than 3% of all known vulnerabilities).

Severity (CVSS 3.1)7.3High

Exploit odds (30 days)0.1%top 97.1% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

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

Affected products (as reported)

Vendor	Product	Versions
Huawei	HarmonyOS	6.0.0

Weakness: CWE-362 · Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H

References

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