GHSA-vhcx-55j8-pv9c

GHSA-vhcx-55j8-pv9c PUBLISHED CVSS 7.800000190734863 HIGH

Record from GitHub Advisory Database · Published May 13, 2022

A flaw was found in the way Linux kernel KVM hypervisor before 4.18 emulated instructions such as sgdt/sidt/fxsave/fxrstor. It did not check current privilege(CPL) level while emulating unprivileged instructions. An unprivileged guest user/process could use this flaw to potentially escalate privileges inside guest.

Risk scores

CVSS 3.0

7.800000190734863

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Timeline

May 13, 2022 CVE Published
Apr 9, 2026 Distribution Patch (5 in total, the first dated here)
Apr 9, 2026 Security Advisory (6 in total, the first dated here)

Query this with the API

The same record, from the CLI:

vulnetix vdb vuln GHSA-vhcx-55j8-pv9c
vulnetix vdb fixes GHSA-vhcx-55j8-pv9c

Or with curl, using the org id and key from your account page:

curl -s -H "Authorization: ApiKey ${VULNETIX_ORG_ID}:${VULNETIX_API_KEY}" \
  "https://api.vdb.vulnetix.com/v2/vuln/GHSA-vhcx-55j8-pv9c/fixes/registry"

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References

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