What is CVE-2021-46658?

CVE-2021-46658 is a medium-severity vulnerability in Mariadb. CVSS score: 5.5/10. Published 2022-01-29.

How severe is CVE-2021-46658?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Is CVE-2021-46658 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Mariadb

CVE-2021-46658

save_window_function_values in MariaDB before 10.6.3 allows an application crash because of incorrect handling of with_window_func=true for a subquery.

Published 2022-01-29 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.004 (30.2th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 30th percentile — 30.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000

Affected products

Mariadb

Public proof-of-concept exploits

ARPSyndicate/cvemon

References

jira.mariadb.org/browse/MDEV-25630 (Exploit, Patch, Issue Tracking, Vendor Advisory)
security.netapp.com/advisory/ntap-20220221-0002/ (Third Party Advisory)
mariadb.com/kb/en/security/ (Patch, Vendor Advisory)

Frequently asked questions

What is CVE-2021-46658?: CVE-2021-46658 is a medium-severity vulnerability in Mariadb. CVSS score: 5.5/10. Published 2022-01-29.
How severe is CVE-2021-46658?: Medium severity. CVSS v3 base score is 5.5 out of 10.
Is CVE-2021-46658 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.