Description
The logic to handle periodic Viridian STIMERs performs a division with an unchecked user-controlled divisor value, that can be set to zero to cause a #DE fault.
References (3)
Core 3
Core References
Various Sources
http://xenbits.xen.org/xsa/advisory-504.html
Scores
CVSS v3
7.5
EPSS
0.0037
EPSS Percentile
30.2%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
yes
Technical Impact
partial
Details
CWE
CWE-369
Status
published
Products (1)
Xen/Xen
consult Xen advisory XSA-504
Published
Jul 28, 2026
Tracked Since
Jul 28, 2026