CVE-2026-105958
Spice-server: spice: heap oob read/write via unchecked migration data offsets
CVSS Score
7.5
EPSS Score
0.0%
EPSS Percentile
0th
A flaw was found in spice-server. Multiple migration data handlers use client-supplied offsets from SPICE_MSGC_MIGRATE_DATA messages without bounds validation, allowing a malicious authenticated SPICE client during VM live migration to read arbitrary heap memory or trigger heap corruption via out-of-bounds read and write operations on the message buffer.
| CWE | CWE-787 |
| Vendor | red hat |
| Product | red hat enterprise linux 6 |
| Published | Oct 16, 2026 |
| Last Updated | Oct 16, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H Attack Vector
Network
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Affected Versions
Red Hat / Red Hat Enterprise Linux 6
All versions affected Red Hat / Red Hat Enterprise Linux 7
All versions affected Red Hat / Red Hat Enterprise Linux 8
All versions affected References
Credits
Upstream acknowledges Tristan Madani (Talence Security) as the original reporter.