ZDF
Sign inSign up

Vulnerabilities

Vulnerability · CVE-2022-27447

MariaDB Server v10.9 and below was discovered to contain a use-after-free via the component Binary_string::free_buffer() at /sql/sql_string.h.

Published Apr 14, 2022 · catalog updated Jun 17, 2026 · MariaDB Server v10.9 and

Last checked Nov 4, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2022-27447. EPSS is 2.25%. Act only if a listed version of MariaDB Server v10.9 and is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (MariaDB Server v10.9 and).
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.

Same product and reporting

Severity
High7.5
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
2.25%
Remediation
Version ranges on file
Affected products
cpe debian/debian linux · cpe mariadb/mariadb

MariaDB Server v10.9 and below was discovered to contain a use-after-free via the component Binary_string::free_buffer() at /sql/sql_string.h.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe debian/debian linux10.0
  • cpe mariadb/mariadb< 10.3.35
  • cpe mariadb/mariadb< 10.4.25
  • cpe mariadb/mariadb< 10.5.16
  • cpe mariadb/mariadb< 10.6.8
  • cpe mariadb/mariadb< 10.7.4

How to fix CVE-2022-27447

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2022-27447. EPSS is 2.25%. Act only if a listed version of MariaDB Server v10.9 and is installed.

Which versions are affected?

Compare what you have installed with debian/debian linux 10.0. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-416: Use After Free. EPSS 2.25%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Technology hubs

MariaDB security

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Apr 14, 2022 · Monitored products — high

    Detected

    MariaDB Server v10.9 and below was discovered to contain a use-after-free via the component Binary_string::free_buffer() at /sql/sql_string.h.

  2. Jun 17, 2026 · Monitored products — high

    Updated

    MariaDB Server v10.9 and below was discovered to contain a use-after-free via the component Binary_string::free_buffer() at /sql/sql_string.h.

Sources

  • CVE.orgVulnerability recordCVE-2022-27447

    Official CVE identifier

    cve.org
  • Monitored products — highVendor advisoryCVE-2022-27447

    MariaDB Server v10.9 and below was discovered to contain a use-after-free via the component Binary_string::free_buffer() at /sql/sql_string.h.

    nvd.nist.gov

References

Freshness

Last verified in this catalog Nov 4, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • CVE.orgNov 2, 2026
  • Monitored products — highNov 1, 2026