WinFsp through 2.2.26215 NULL Pointer Dereference via Fast I/O

These records connect through source-stated identifiers. Shared identifiers or dates alone do not establish shared exposure, root cause or applicability.

CVE-2026-93689 · Microsoft / collected KEV context

cve-program · CVE-2026-93689

• https://github.com/winfsp/winfsp/commit/b8103265ec63fa87ac264c62bb796dbc38376652
• https://github.com/winfsp/winfsp
• https://github.com/winfsp/winfsp/blob/v2.2B4/src/sys/devctl.c#L68-L73
• https://github.com/winfsp/winfsp/blob/v2.2B4/src/sys/devctl.c#L105-L114
• https://github.com/winfsp/winfsp/blob/v2.2B4/src/sys/devctl.c#L146-L152
• https://github.com/winfsp/winfsp/blob/v2.2B4/src/sys/volume.c#L1059-L1060
• https://github.com/winfsp/winfsp/releases/tag/v2.2B4
• https://www.vulncheck.com/advisories/winfsp-through-2.2.26215-null-pointer-dereference-via-fast-i-o

No related operational record is retained in the current change model.