What’s Vulnerable › Vulnerabilities

CVE-2018-18883

• Severity: high (CVSS 8.8 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2018-11-01 · updated 2026-06-17
• Weakness: CWE-476

Description

An issue was discovered in Xen 4.9.x through 4.11.x, on Intel x86 platforms, allowing x86 HVM and PVH guests to cause a host OS denial of service (NULL pointer dereference) or possibly have unspecified other impact because nested VT-x is not properly restricted.

Affected products

• xen: from 4.9.0 through 4.11.0

References

• http://www.securityfocus.com/bid/105817
• http://www.securitytracker.com/id/1042021
• https://xenbits.xen.org/xsa/advisory-278.html
• http://www.securityfocus.com/bid/105817
• http://www.securitytracker.com/id/1042021
• https://xenbits.xen.org/xsa/advisory-278.html

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