# CVE-2022-0171: CVE-2022-0171

Status: published. Published: 2022-08-26. Updated: 2026-11-02.

A flaw was found in the Linux kernel. The existing KVM SEV API has a vulnerability that allows a non-root (host) user-level application to crash the host kernel by creating a confidential guest VM instance in AMD CPU that supports Secure Encrypted Virtualization (SEV).

## Remediation

No remediation reported in collected sources

## Affected products and versions

- n/a / kernel: Fixed in kernel 5.18-rc4 (affected). Source: CNA: redhat
- Siemens / SIMATIC S7-1500 TM MFP - GNU/Linux subsystem: ≥ 0; < V1.1 (affected, custom). Source: ADP: siemens-SADP

## Severity and prioritization

- CISA KEV: No listing in collected sources

- EPSS: 0.30% as of 2026-11-02; percentile 22.59%

- SSVC: exploitation none; automatable no; technical impact partial; source ADP: CISA-ADP

- Weaknesses: CWE-459

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

- https://bugzilla.redhat.com/show_bug.cgi?id=2038940 (CNA: redhat)

- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=683412ccf61294d727ead4a73d97397396e69a6b (CNA: redhat)

- https://access.redhat.com/security/cve/CVE-2022-0171 (CNA: redhat)

- https://www.debian.org/security/2022/dsa-5257 (CNA: redhat; vendor-advisory)

- https://lists.debian.org/debian-lts-announce/2022/11/msg00001.html (CNA: redhat; mailing-list)

- https://bugzilla.redhat.com/show_bug.cgi?id=2038940 (ADP: CVE; x_transferred)

- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=683412ccf61294d727ead4a73d97397396e69a6b (ADP: CVE; x_transferred)

- https://access.redhat.com/security/cve/CVE-2022-0171 (ADP: CVE; x_transferred)

- https://www.debian.org/security/2022/dsa-5257 (ADP: CVE; vendor-advisory, x_transferred)

- https://lists.debian.org/debian-lts-announce/2022/11/msg00001.html (ADP: CVE; mailing-list, x_transferred)

- https://cert-portal.siemens.com/productcert/html/ssa-794697.html (ADP: siemens-SADP)

## Provenance

- CNA: redhat: https://www.cve.org/CVERecord?id=CVE-2022-0171; retrieved 2026-11-02; source updated 2026-11-02

- FIRST EPSS: https://api.first.org/data/v1/epss?cve=CVE-2022-0171; retrieved 2026-11-02; source updated Not reported

Revision: 19ca9866c81e478e6a2020fa848073625437ca28b1dd6a3b696974c02170a5ff

Canonical: https://y2.dev/cve/CVE-2022-0171

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