What is CVE-2021-46667?

CVE-2021-46667 is a medium-severity vulnerability in Mariadb, classified under Integer Overflow or Wraparound. CVSS score: 5.5/10. Published 2022-02-01.

How severe is CVE-2021-46667?

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

Integer overflow in Mariadb

CVE-2021-46667

MariaDB before 10.6.5 has a sql_lex.cc integer overflow, leading to an application crash.

Vulnerability class: Integer Overflow

Published 2022-02-01 · 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 (34.0th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 34th percentile — 34.0% 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
Fedoraproject Fedora — versions 34, 35, 36

Weakness classification (CWE)

CWE-190 — Integer Overflow or Wraparound

References

jira.mariadb.org/browse/MDEV-26350 (Exploit, Patch, Third Party Advisory, Issue Tracking)
security.netapp.com/advisory/ntap-20220221-0002/ (Third Party Advisory)
mariadb.com/kb/en/security/ (Vendor Advisory)
lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)

Frequently asked questions

What is CVE-2021-46667?: CVE-2021-46667 is a medium-severity vulnerability in Mariadb, classified under Integer Overflow or Wraparound. CVSS score: 5.5/10. Published 2022-02-01.
How severe is CVE-2021-46667?: Medium severity. CVSS v3 base score is 5.5 out of 10.