CVE-2026-31786
An attacker can exploit multiple vulnerabilities in Xen and Citrix Systems XenServer to escalate privileges, bypass security measures, modify and disclose data, or cause a denial-of-service condition.
CSIRTS triage
- What
- Multiple vulnerabilities can escalate privileges, bypass security measures, modify and disclose data, or cause denial of service.
- Who is affected
- Users of Xen and Citrix Systems XenServer.
- Urgency
- Remediation is urgent due to the high severity of the vulnerabilities.
- Action
- Apply the latest security updates for XenServer.
AI-assisted analysis generated from the source advisory — verify against the original.
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Exploitation outlook
- Low exploitation risk0.20% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 10% of all EPSS-scored CVEs.
Advisory coverage (2)
- high[UPDATE] [high] Xen and Citrix Systems XenServer: Multiple vulnerabilitiescert-bund · 2026-07-10
- unknownMultiple vulnerabilities in the Red Hat Linux kernel (June 26, 2026)cert-fr-avis · 2026-06-26
External references
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