CVE-2026-105958CWE-787

CVE-2026-105958

High · published October 16, 2026

CVSS v3.1
7.5
EPSS
0%
Percentile
15.0
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
7.5 · HIGH
Vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00246 · 15.0th percentile
Weakness
CWE-787 · Out-of-bounds Write
Published
2026-10-16T17:16Z
References (2)
https://access.redhat.com/security/cve/CVE-2026-105958 · [email protected]https://gitlab.freedesktop.org/spice/spice/-/merge_requests/257 · [email protected]
EPSS history
Timeline
  • 18 OCT 03:27Z
    EPSS moved — → 0%
    epss
  • 16 OCT 12:18Z
    Spice-server: spice: heap oob read/write via unchecked migration data offsets
    cvelistv5
  • 16 OCT 12:18Z
    Spice-server: spice: heap oob read/write via unchecked migration data offsets
    cvelistv5