Paper/Archive/CVE-2026-34865

CVE-2026-34865

Huawei HarmonyOS — Out-of-bounds write vulnerability in the WEB module.Impact: Successful exploitation of this vulnerability will affect availability and co…

EPSS 0.2%CVSS 10.0

critical.is priorityof 100

CVSS 10.0 (CNA)10.0 / 10 × 3030.0 Not in CISA KEV+300.0 EPSS percentile 11.4.114 × 202.3 No public exploit+100.0 SSVC exploitation: none+100.0

Description · from the CVE record

Out-of-bounds write vulnerability in the WEB module.Impact: Successful exploitation of this vulnerability will affect availability and confidentiality.

Affected

ProductAffectedFixed inSource

HarmonyOS6.0.0–CNA

Scores by source

huawei (CNA)10.0CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

NVD9.1CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: total

References

refconsumer.huawei.com/en/support/bulletinwearables/2026/4