What is CVE-2022-27383?

CVE-2022-27383 is a high-severity vulnerability in Mariadb, classified under Use After Free. CVSS score: 7.5/10. Published 2022-04-12.

How severe is CVE-2022-27383?

High severity. CVSS v3 base score is 7.5 out of 10.

Use After Free in Mariadb

CVE-2022-27383

MariaDB Server v10.6 and below was discovered to contain an use-after-free in the component my_strcasecmp_8bit, which is exploited via specially crafted SQL statements.

Vulnerability class: Use-After-Free

Published 2022-04-12 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.021 (81.2th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 81st percentile — 81.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.021 · newest: 0.021 · change: +0.000

Affected products

Mariadb
Debian Linux — versions 10.0

Weakness classification (CWE)

CWE-416 — Use After Free

References

jira.mariadb.org/browse/MDEV-26323 (Exploit, Issue Tracking, Vendor Advisory)
security.netapp.com/advisory/ntap-20220519-0006/ (Third Party Advisory)
lists.debian.org/debian-lts-announce/2022/09/msg00023.html (mailing-list, Mailing List, Third Party Advisory)

Frequently asked questions

What is CVE-2022-27383?: CVE-2022-27383 is a high-severity vulnerability in Mariadb, classified under Use After Free. CVSS score: 7.5/10. Published 2022-04-12.
How severe is CVE-2022-27383?: High severity. CVSS v3 base score is 7.5 out of 10.