CVE-2023-46840: medium-severity vulnerability in Xen
VT-d: Failure to quarantine devices in !HVM builds
Published · Updated
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 4.1epss 0.3%
Incorrect placement of a preprocessor directive in source code results
in logic that doesn't operate as intended when support for HVM guests is
compiled out of Xen.
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:H/A:N
Affected products
Xen · XenRelated CVEs — Xen
In the same product, most dangerous first.
CVE-2024-31142HIGHx86: Incorrect logic for BTC/SRSO mitigationsEPSS 17.4%CVE-2024-2201MEDIUMCVE-2024-2201EPSS 8.8%CVE-2023-46842MEDIUMx86 HVM hypercalls may trigger Xen bug checkEPSS 8.5%CVE-2024-2193MEDIUMSpeculative Race Condition impacts modern CPU architectures that support speculative execution, also known as GhostRace.EPSS 1.3%CVE-2025-1713HIGHdeadlock potential with VT-d and legacy PCI device pass-throughEPSS 0.9%CVE-2023-46839MEDIUMpci: phantom functions assigned to incorrect contextsEPSS 0.8%