CVE-2017-15594

Severity: high (CVSS 8.8 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2017-10-18 · updated 2026-06-17

Description

An issue was discovered in Xen through 4.9.x allowing x86 SVM PV guest OS users to cause a denial of service (hypervisor crash) or gain privileges because IDT settings are mishandled during CPU hotplugging.

Affected products

xen: through 4.9.0

References

http://www.securitytracker.com/id/1039568
https://lists.debian.org/debian-lts-announce/2018/10/msg00021.html
https://security.gentoo.org/glsa/201801-14
https://support.citrix.com/article/CTX228867
https://www.debian.org/security/2017/dsa-4050
https://xenbits.xen.org/xsa/advisory-244.html
http://www.securitytracker.com/id/1039568
https://lists.debian.org/debian-lts-announce/2018/10/msg00021.html
https://security.gentoo.org/glsa/201801-14
https://support.citrix.com/article/CTX228867
https://www.debian.org/security/2017/dsa-4050
https://xenbits.xen.org/xsa/advisory-244.html

Get alerted when CVE-2017-15594 or the next vulnerability affects your stack