Read the docs
TI-2018-05449 Aliases CVE-2018-7540GHSA-g669-vf33-57jw

An issue was discovered in Xen through 4.10.x allowing x86 PV guest OS users to cause a…

Priority LOW 29CWE-400Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
Will not fix Red Hat: no fix planned

Attack profile from CVSS 3.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-400.

Summary

An issue was discovered in Xen through 4.10.x allowing x86 PV guest OS users to cause a denial of service (host OS CPU hang) via non-preemptable L3/L4 pagetable freeing.

Why it matters now

EPSS 0.00427 37th percentileScored 2026-11-07
Fix Will not fix Red Hat: no fix planned

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:o:xen:xen:*:*:*:*:*:*:*:*up to 4.10.0VulnerableXen
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*9.0VulnerableDebian
  • cpe:2.3:o:xen:xen:*:*:*:*:*:*:*:* Versions up to 4.10.0 Vulnerable ·Xen
  • cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* Versions 9.0 Vulnerable ·Debian

Remediation

No fixed version listed by the sources yet.

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux 5AffectedNo fix planned: Will not fix

Timeline

  1. 2026-10-02 Threatist record created from CVE-2018-7540
  2. 2026-10-03 Alias added: GHSA-g669-vf33-57jw

References

Advisory 4

Other 3

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences