CVE-2024-46762: xen: privcmd: Fix possible access to a freed kirqfd instance

mediumCVSS 5.5CVE-2024-46762

CSIRTS triage

vendor: Xen product: XenOther

What: Xen privcmd module may access a freed kirqfd instance, potentially causing a use-after-free condition.
Who is affected: Xen hypervisor deployments using privcmd interface.
Urgency: Medium severity due to potential memory safety issue in hypervisor.
Action: Apply Xen security patch addressing CVE-2024-46762.

AI-assisted analysis generated from the source advisory — verify against the original.

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Details

Source: Microsoft Security Response Center (INTL · vendor-psirt · site)
Severity: medium — CVSS 5.5
Published: 2026-08-06
Exploitation: Not in CISA KEV at last sync

Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-46762

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Low exploitation riskCVE-2024-467620.24% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 15% of all EPSS-scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2024-46762	coverage & exploitation status	NVD · CVE.org

Same CVEs, other sources

How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.

medium[UPDATE] [medium] Linux Kernel: Multiple vulnerabilitiescert-bund

Recent advisories for xen

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

unknownCVE-2026-72086: In the Linux kernel, the following vulnerability has been resolved: scsi: xen: scsiback: Free …nvd · 2026-08-15
criticalCVE-2026-72085: In the Linux kernel, the following vulnerability has been resolved: scsi: xen: scsiback: Free …nvd · 2026-08-15
high[UPDATE] [high] Xen and Citrix Systems XenServer: Multiple vulnerabilitiescert-bund · 2026-08-12
unknownCVE-2026-68092: In the Linux kernel, the following vulnerability has been resolved: time/jiffies: Register jif…nvd · 2026-08-10
high[NEW] [high] Xen: Multiple vulnerabilitiescert-bund · 2026-08-10
medium[UPDATE] [medium] Xen: Multiple vulnerabilitiescert-bund · 2026-08-10