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Servers and applications

CVE-2019-18422

An issue was discovered in Xen through 4.12.x allowing ARM guest OS users to cause a denial of service or gain privileges by leveraging the erroneous enabling of interrupts. Interrupts are unconditionally unmasked in exception handlers. When an exception occurs on an ARM system which is handled without changing processor level, some interrupts are unconditionally enabled during exception entry.…

Severity
High 8.8
Published
31 Oct 2019
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Exploit chance
1.8% in the next 30 daysHigher than 78% of CVEs. EPSS by FIRST, 10 Nov 2026
Sources
NVD

Affected software

SoftwareAffected versions
XenServers and applications · cpe:o:xen:xen
  • Every version up to 4.12.1

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2019-18422
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2019-18422