[UPDATE] [high] Xen: Multiple vulnerabilities

highCVE-2025-27466 CVE-2025-58142 CVE-2025-58143 CVE-2025-58146 CVE-2025-58144 CVE-2025-58145

An attacker can exploit multiple vulnerabilities in Xen to carry out a denial-of-service attack, disclose information, or escalate privileges.

CSIRTS triage

vendor: Xen product: Xen Denial of service Information disclosure Privilege escalation

What: An attacker can exploit multiple vulnerabilities in Xen to carry out a denial-of-service attack, disclose information, or escalate privileges.
Who is affected: Deployments of Xen are affected.
Urgency: Remediation is high urgency due to the high severity and potential for exploitation.
Action: Update to the latest version of Xen.

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

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Details

Source: CERT-Bund (BSI) Security Advisories (DE · national-cert · site)
Severity: high
Published: 2026-07-10
Exploitation: Not in CISA KEV at last sync
Language: Machine-translated to English — verify against the original

Original advisory: https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2025-2007

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-2025-274660.47% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 38% of all EPSS-scored CVEs.
Low exploitation riskCVE-2025-581420.47% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 38% of all EPSS-scored CVEs.
Low exploitation riskCVE-2025-581430.37% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 29% of all EPSS-scored CVEs.
Low exploitation riskCVE-2025-581460.18% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 7% of all EPSS-scored CVEs.
Low exploitation riskCVE-2025-581440.45% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 37% of all EPSS-scored CVEs.
Low exploitation riskCVE-2025-581450.35% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 28% of all EPSS-scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2025-27466	coverage & exploitation status	NVD · CVE.org
CVE-2025-58142	coverage & exploitation status	NVD · CVE.org
CVE-2025-58143	coverage & exploitation status	NVD · CVE.org
CVE-2025-58146	coverage & exploitation status	NVD · CVE.org
CVE-2025-58144	coverage & exploitation status	NVD · CVE.org
CVE-2025-58145	coverage & exploitation status	NVD · CVE.org

Same CVEs, other sources

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

unknownCVE-2025-58146: There are multiple issues. 1. Updates to the XAPI database sanitise input strings, but try gen…nvd

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