CVE-2026-79602CWE-119

CVE-2026-79602

High · published September 8, 2026

CVSS v3.1
8.8
EPSS
0%
Percentile
2.0
In the wild
Unconfirmed
What it is

A guest with a PCI device assigned that has at least a BAR on the IO port

space can trigger a BUG() in Xen.

The record
Technical detail
CVSS v3.1
8.8 · HIGH
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00125 · 2.0th percentile
Weakness
CWE-119 · Improper Restriction of Operations within the Bounds of a Memory Buffer
Published
2026-09-08T17:17Z
References (3)
https://xenbits.xenproject.org/xsa/advisory-510.html · [email protected]http://www.openwall.com/lists/oss-security/2026/09/08/7 · af854a3a-2127-422b-91ae-364da2661108http://xenbits.xen.org/xsa/advisory-510.html · af854a3a-2127-422b-91ae-364da2661108
EPSS history
Timeline
  • 10 SEP 03:18Z
    EPSS moved — → 0%
    epss
  • 08 SEP 12:11Z
    x86: improper handling of HVM emulation return codes
    cvelistv5