CVE-2026-102700CWE-404

CVE-2026-102700

Medium · published October 13, 2026

CVSS v3.1
4.7
EPSS
0%
Percentile
1.5
In the wild
Unconfirmed
What it is

With its original introduction, GNTTAB_cache_flush was made available

uniformly. XSA-232 (CVE-2017-14318) then covered an omitted NULL

pointer check, yet the addition of that check failed to adjust the

subsequent error path. That error path fails to drop a page reference in

case the specified page is owned by a special system domain (DOM_IO and

DOM_COW are system domains which can have memory pages assigned to them.)

The record
Technical detail
CVSS v3.1
4.7 · MEDIUM
Vector
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.00116 · 1.5th percentile
Weakness
CWE-404 · Improper Resource Shutdown or Release
Published
2026-10-13T20:17Z
References (2)
https://xenbits.xenproject.org/xsa/advisory-520.html · [email protected]http://xenbits.xen.org/xsa/advisory-520.html · af854a3a-2127-422b-91ae-364da2661108
EPSS history
Timeline
  • 15 OCT 03:28Z
    EPSS moved — → 0%
    epss
  • 13 OCT 15:45Z
    gnttab: cache-flush handling may cause page reference leak
    cvelistv5
  • 13 OCT 15:45Z
    gnttab: cache-flush handling may cause page reference leak
    cvelistv5