What’s Vulnerable › Vulnerabilities

CVE-2018-19963

• Severity: high (CVSS 7.8 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2018-12-08 · updated 2026-06-17
• Weakness: CWE-617

Description

An issue was discovered in Xen 4.11 allowing HVM guest OS users to cause a denial of service (host OS crash) or possibly gain host OS privileges because x86 IOREQ server resource accounting (for external emulators) was mishandled.

Affected products

• xen: 4.11.0

References

• http://www.securityfocus.com/bid/106182
• https://xenbits.xen.org/xsa/advisory-276.html
• http://www.securityfocus.com/bid/106182
• https://xenbits.xen.org/xsa/advisory-276.html

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