How to Fix CVE-2026-0028: Android (Bundle Sibling)
By Sai Kiran Pandrala. Last verified: 2026-05-25.
CVE-2026-0028 is a sibling vulnerability in the same vendor advisory as CVE-2026-0005. Apply the same patched build and you close both. The technical detail below is what differs.
| Severity | 8.4 (High) |
|---|---|
| Actively exploited? | No public listing in CISA KEV |
| Affected | Android Android kernel |
| Fixed in | Same patched build as CVE-2026-0005 |
| Type (CWE) | CWE-190 Integer Overflow or Wraparound |
What's different about CVE-2026-0028?
In __pkvm_host_share_guest of mem_protect.c, there is a possible out of bounds write due to an integer overflow. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.
How to fix CVE-2026-0028
Apply the patched build per the primary write-up: How to Fix CVE-2026-0005. All commands, verification steps, and rollback notes for Android are listed there.
Frequently asked questions
Does the CVE-2026-0005 patch close CVE-2026-0028?
Yes. Both CVEs are addressed by the same vendor patch. Applying the patched build closes the full bundle.
Is CVE-2026-0028 listed in CISA KEV?
No public KEV listing at the time of this writing.
Where is the official advisory?
See https://source.android.com/docs/security/bulletin/2026/2026-03-01
References
- Official vendor advisory: https://source.android.com/docs/security/bulletin/2026/2026-03-01
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-0028
- CISA KEV catalog: https://www.cisa.gov/known-exploited-vulnerabilities-catalog
- Primary: How to Fix CVE-2026-0005
*Written by Sai Kiran Pandrala. Part of the Android bundle. Full procedure at how-to-fix-cve-2026-0005.*