How to Fix CVE-2026-28546: HarmonyOS (Bundle Sibling)
By Sai Kiran Pandrala. Last verified: 2026-05-25.
CVE-2026-28546 is a sibling vulnerability in the same vendor advisory as CVE-2026-28536. Apply the same patched build and you close both. The technical detail below is what differs.
| Severity | 5.9 (Medium) |
|---|---|
| Actively exploited? | No public listing in CISA KEV |
| Affected | HarmonyOS 6.0.0 |
| Fixed in | Same patched build as CVE-2026-28536 |
| Type (CWE) | CWE-122 Heap-based Buffer Overflow |
What's different about CVE-2026-28546?
Buffer overflow vulnerability in the scanning module. Impact: Successful exploitation of this vulnerability may affect availability.
How to fix CVE-2026-28546
Apply the patched build per the primary write-up: How to Fix CVE-2026-28536. All commands, verification steps, and rollback notes for HarmonyOS are listed there.
Frequently asked questions
Does the CVE-2026-28536 patch close CVE-2026-28546?
Yes. Both CVEs are addressed by the same vendor patch. Applying the patched build closes the full bundle.
Is CVE-2026-28546 listed in CISA KEV?
No public KEV listing at the time of this writing.
Where is the official advisory?
See https://consumer.huawei.com/en/support/bulletin/2026/3/
References
- Official vendor advisory: https://consumer.huawei.com/en/support/bulletin/2026/3/
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-28546
- CISA KEV catalog: https://www.cisa.gov/known-exploited-vulnerabilities-catalog
- Primary: How to Fix CVE-2026-28536
*Written by Sai Kiran Pandrala. Part of the HarmonyOS bundle. Full procedure at how-to-fix-cve-2026-28536.*