{"id":"CVE-2021-28663","aliases":["A-174259860"],"url":"https://o3.security/vulnerability/CVE-2021-28663","summary":null,"details":"In kbase_mem_from_user_buffer of mali_kbase_mem_linux.c, there is a possible remapping of shared read-only memory as write-able due to a missing permission check. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.","published":"2021-05-01T00:00:00Z","modified":"2026-10-23T16:03:44.105534497Z","cvss":null,"epss":{"score":0.12084,"percentile":0.95938,"asOf":"2026-09-17"},"cisaKev":{"dateAdded":"2021-11-03","dueDate":"2021-11-17","knownRansomwareCampaignUse":false},"exploitsKnown":5,"affectedPackages":[{"ecosystem":"Android","name":":unknown:","fixedVersion":"SoCVersion:2021-05-05"}],"fix":null,"references":[{"type":"ADVISORY","url":"https://source.android.com/security/bulletin/2021-05-01"}],"provenance":{"sources":["OSV.dev","CISA KEV","FIRST.org (EPSS)"],"lastVerified":"2026-10-23T16:03:44.105534497Z"}}