CVE-2021-3392

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

0.45% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 38.7% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

NVD analysis status

Modified. 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

2021-03-23 19:07Z5 YR AGO

Last updated

2024-08-03 16:53Z2 YR AGO

Reserved

2021-02-02

Assigning CNA

redhat

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-416Use After FreeVariant

Data version

5.1

Document digest

d56ece7659302e678bc619eae3c6129c9bfcdd9dbbe7d9494ba328e689eee900

• bugzilla.redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=1924042x_refsource_MISC
• bugs.launchpad.nethttps://bugs.launchpad.net/qemu/+bug/1914236x_refsource_MISC
• lists.debian.org[debian-lts-announce] 20210410 [SECURITY] [DLA 2623-1] qemu security updatehttps://lists.debian.org/debian-lts-announce/2021/04/msg00009.htmlmailing-listx_refsource_MLIST
• security.netapp.comhttps://security.netapp.com/advisory/ntap-20210507-0001/x_refsource_CONFIRM
• lists.debian.org[debian-lts-announce] 20220905 [SECURITY] [DLA 3099-1] qemu security updatehttps://lists.debian.org/debian-lts-announce/2022/09/msg00008.htmlmailing-listx_refsource_MLIST