CVE-2021-3667

Exploitation

Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.

SSVC decision

Not assessed by CISA

EPSS probability

1.37% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 69.9% of scored records. A rank, not a probability.

NVD base score

6.5 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

NVD analysis status

Analyzed. NVD last modified this record on 2026-06-17.

Red Hat severity

Low. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2022-03-02 00:00Z4 YR AGO

Last updated

2025-02-13 16:28Z1 YR AGO

Reserved

2021-07-27

Assigning CNA

redhat

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-667Improper LockingClass

Data version

5.1

Document digest

5563f6a41b22e4e79d98e6a8f5b676778a14df6d4265f841ced3344099add0a6

• bugzilla.redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=1986094
• libvirt.orghttps://libvirt.org/git/?p=libvirt.git%3Ba=commit%3Bh=447f69dec47e1b0bd15ecd7cd49a9fd3b050fb87
• gitlab.comhttps://gitlab.com/libvirt/libvirt/-/commit/447f69dec47e1b0bd15ecd7cd49a9fd3b050fb87
• security.netapp.comhttps://security.netapp.com/advisory/ntap-20220331-0005/
• security.gentoo.orgGLSA-202210-06https://security.gentoo.org/glsa/202210-06vendor-advisory
• lists.debian.orghttps://lists.debian.org/debian-lts-announce/2024/04/msg00000.html