CVE-2026-28537 Use after free in HarmonyOS

What is CVE-2026-28537?

CVE-2026-28537 is a medium-severity use after free vulnerability in Huawei Harmonyos, published on 5 Mar 2026. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Double free vulnerability in the window module. Impact: Successful exploitation of this vulnerability may affect availability.

Weakness: CWE-415

Which versions are affected by CVE-2026-28537?

It affects 1 product.

Products include Huawei Harmonyos.

How do I fix CVE-2026-28537?

No fix has been published for CVE-2026-28537 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.

Is CVE-2026-28537 being exploited?

There is no known exploitation of CVE-2026-28537 in the wild and no public exploit code.

Other vulnerabilities in Huawei Harmonyos

• CVE-2026-34865 Memory corruption in HarmonyOS Critical 10.0
• CVE-2023-34157 Other in HarmonyOS Critical 10.0
• CVE-2023-41294 Denial of service in HarmonyOS Critical 9.8
• CVE-2022-48478 Denial of service in HarmonyOS Critical 9.8
• CVE-2022-48479 Memory corruption in HarmonyOS Critical 9.8

All Huawei Harmonyos vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-3cff-w54f-j96w.