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Fencer Vulns
medium 5.5

CVE-2021-46662 json

MariaDB through 10.5.9 allows a set_var.cc application crash via certain uses of an UPDATE statement in conjunction with a nested subquery.

published 2022-02-01 4 y ago modified 2026-09-08 2 mo ago also BIT-mariadb-2021-46662 , BIT-mariadb-min-2021-46662 , BIT-mysql-client-2021-46662 , EUVD-2021-33338

cvss
5.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 33%
public exploits
0
none known

Summary

MariaDB through 10.5.9 allows a set_var.cc application crash via certain uses of an UPDATE statement in conjunction with a nested subquery.

Patch / fix

  • bitnami mariadb 10.3.32, 10.4.22, 10.5.13, 10.6.5
  • bitnami mariadb-min 10.3.32, 10.4.22, 10.5.13, 10.6.5
  • bitnami mysql-client 10.3.32, 10.4.22, 10.5.13, 10.6.5
  • mariadb mariadb 10.3.32, 10.4.22, 10.5.13, 10.6.5
  • mariadb-10.5 Debian 11 1:10.5.15-0+deb11u1

debian advisories DEBIAN-CVE-2021-46662

  • mariadb-10.3 Ubuntu 20.04 LTS 1:10.3.34-0ubuntu0.20.04.1

ubuntu advisories UBUNTU-CVE-2021-46662

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • Judy RHEL 8, RHEL 8.4 EUS 1.0.5-18.module+el8+2765+cfa4f87b
  • galera RHEL 8 25.3.34-4.module+el8.5.0+14124+14ced695
  • mariadb RHEL 8 3:10.3.32-2.module+el8.5.0+14124+14ced695
  • mariadb-test RHEL 8 3:10.3.32-2.module+el8.5.0+14124+14ced695
  • mariadb-backup RHEL 8 3:10.3.32-2.module+el8.5.0+14124+14ced695
  • mariadb-common RHEL 8 3:10.3.32-2.module+el8.5.0+14124+14ced695
  • mariadb-errmsg RHEL 8 3:10.3.32-2.module+el8.5.0+14124+14ced695
  • mariadb-server RHEL 8 3:10.3.32-2.module+el8.5.0+14124+14ced695

red hat advisories RHSA-2022:4818RHSA-2022:1556RHSA-2022:1557RHSA-2022:1007RHSA-2022:1010RHSA-2023:6821

  • Judy AlmaLinux 8 1.0.5-18.module_el8.6.0+2867+72759d2f
  • Judy AlmaLinux 8 1.0.5-18.module_el8.5.0+2637+d11efe18
  • Judy AlmaLinux 8 1.0.5-18.module_el8.6.0+2761+593e5e59
  • galera AlmaLinux 8 26.4.9-4.module_el8.6.0+2761+593e5e59
  • galera AlmaLinux 8 26.4.9-4.module_el8.5.0+2637+d11efe18
  • mariadb AlmaLinux 8 3:10.5.13-1.module_el8.5.0+2637+d11efe18
  • mariadb AlmaLinux 8 3:10.5.13-1.module_el8.6.0+2761+593e5e59
  • mariadb-pam AlmaLinux 8 3:10.5.13-1.module_el8.6.0+2761+593e5e59

almalinux advisories ALSA-2022:1557ALSA-2022:1556

  • Judy Rocky Linux 8 1.0.5-18.module+el8.4.0+427+adf35707
  • galera Rocky Linux 8 26.4.9-4.module+el8.5.0+773+f75e97f7
  • mariadb Rocky Linux 8 3:10.5.13-1.module+el8.5.0+773+f75e97f7
  • galera Rocky Linux 8 25.3.34-4.module+el8.5.0+777+18007c86
  • mariadb Rocky Linux 8 3:10.3.32-2.module+el8.5.0+777+18007c86

rocky linux advisories RLSA-2022:1557RLSA-2022:1556

  • mariadb Alpine 3.24, Alpine 3.23, Alpine 3.22 +7 more 10.6.7-r0

alpine advisories ALPINE-CVE-2021-46662

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • mariadb CBL-Mariner 2.0 10.6.7-1

azure linux advisories AZL-8406

Azure Linux vulnerability data, Copyright (c) Microsoft Corporation, from https://github.com/microsoft/AzureLinuxVulnerabilityData via OSV, under the MIT licence; changed: normalised to fixed package versions per release. MIT

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2021-46662 updated cvss 5.5

mariadb: Crash in set_var.cc via certain UPDATE queries with nested subqueries

  • Red Hat Enterprise Linux 7 mariadb, mariadb-libs, mariadb-test, mariadb-bench, mariadb-server, mariadb-embedded
    affected: no fix planned “Out of support scope”
  • Red Hat Enterprise Linux 9 mariadb, mariadb-pam, mariadb-test, mariadb-backup, mariadb-common, mariadb-errmsg, +6 more
    affected: no fix available
  • Red Hat OpenStack Platform 13 (Queens) mariadb, mariadb-libs, mariadb-test, mariadb-common, mariadb-config, mariadb-errmsg, +3 more
    affected: no fix planned “Out of support scope”
  • Red Hat Enterprise Linux AppStream (v. 8) Judy 1.0.5-18.module+el8+2765+cfa4f87b, Judy 1.0.5-18.module+el8.4.0+9031+9abc7af9, galera 26.4.9-4.module+el8.5.0+14125+d11efe18, galera 25.3.34-4.module+el8.5.0+14124+14ced695, mariadb 10.3.32-2.module+el8.5.0+14124+14ced695, mariadb 10.5.13-1.module+el8.5.0+14125+d11efe18, +21 more
    fixed: vendor fix RHSA-2022:1556
  • Red Hat Enterprise Linux AppStream AUS (v.8.4) Judy 1.0.5-18.module+el8.4.0+9031+9abc7af9, galera 26.4.14-1.module+el8.4.0+20291+fd32d29c, mariadb 10.5.22-1.module+el8.4.0+20291+fd32d29c, mariadb-pam 10.5.22-1.module+el8.4.0+20291+fd32d29c, mariadb-test 10.5.22-1.module+el8.4.0+20291+fd32d29c, mariadb-backup 10.5.22-1.module+el8.4.0+20291+fd32d29c, +8 more Red Hat Enterprise Linux AppStream E4S (v.8.4) Judy 1.0.5-18.module+el8.4.0+9031+9abc7af9, galera 26.4.14-1.module+el8.4.0+20291+fd32d29c, mariadb 10.5.22-1.module+el8.4.0+20291+fd32d29c, mariadb-pam 10.5.22-1.module+el8.4.0+20291+fd32d29c, mariadb-test 10.5.22-1.module+el8.4.0+20291+fd32d29c, mariadb-backup 10.5.22-1.module+el8.4.0+20291+fd32d29c, +8 more
    fixed: vendor fix RHSA-2023:6821
  • Red Hat Enterprise Linux AppStream EUS (v.8.4) Judy 1.0.5-18.module+el8+2765+cfa4f87b, galera 25.3.34-4.module+el8.4.0+15058+0c3d11c7, mariadb 10.3.32-2.module+el8.4.0+15058+0c3d11c7, mariadb-test 10.3.32-2.module+el8.4.0+15058+0c3d11c7, mariadb-backup 10.3.32-2.module+el8.4.0+15058+0c3d11c7, mariadb-common 10.3.32-2.module+el8.4.0+15058+0c3d11c7, +7 more
    fixed: vendor fix RHSA-2022:4818
  • Red Hat Enterprise Linux AppStream TUS (v.8.4) Judy 1.0.5-18.module+el8.4.0+9031+9abc7af9, galera 26.4.14-1.module+el8.4.0+20291+fd32d29c, mariadb 10.5.22-1.module+el8.4.0+20291+fd32d29c, mariadb-pam 10.5.22-1.module+el8.4.0+20291+fd32d29c, mariadb-test 10.5.22-1.module+el8.4.0+20291+fd32d29c, mariadb-backup 10.5.22-1.module+el8.4.0+20291+fd32d29c, +8 more
    fixed: vendor fix RHSA-2023:6821
  • Red Hat Software Collections for RHEL Workstation(v. 7) rh-mariadb105-galera 26.4.9-3.el7, rh-mariadb103-galera 25.3.34-4.el7, rh-mariadb103-mariadb 10.3.32-2.el7, rh-mariadb105-mariadb 10.5.13-1.el7, rh-mariadb105-mariadb-pam 10.5.13-1.el7, rh-mariadb103-mariadb-test 10.3.32-2.el7, +34 more Red Hat Software Collections for RHEL(v. 7) rh-mariadb105-galera 26.4.9-3.el7, rh-mariadb103-galera 25.3.34-4.el7, rh-mariadb103-mariadb 10.3.32-2.el7, rh-mariadb105-mariadb 10.5.13-1.el7, rh-mariadb105-mariadb-pam 10.5.13-1.el7, rh-mariadb103-mariadb-test 10.3.32-2.el7, +34 more
    fixed: vendor fix RHSA-2022:1010

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

cisa ICSA-26-027-02 updated cvss 5.5

Festo Didactic SE MES PC

  • Festo Didactic SE MES PC shipped_with_Windows_10
    affected: vendor fix

Facts from CISA's republication of the vendor's own advisory (CSAF); the linked advisory is the authoritative source. CISA notification · csaf

Exploit prediction

0.39% chance of exploitation in the next 30 days, higher than 33% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • jira.mariadb.org https://jira.mariadb.org/browse/MDEV-25637 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
NVD 2.0 2.1 AV:L/AC:L/Au:N/C:N/I:N/A:P
OSV 3.1 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected packages

ecosystem package affected fixed in
bitnami mariadb
>=10.3.0, <10.3.32
>=10.4.0, <10.4.22
>=10.5.0, <10.5.13
>=10.6.0, <10.6.5
10.3.32
10.4.22
10.5.13
10.6.5
bitnami mariadb-min
>=10.3.0, <10.3.32
>=10.4.0, <10.4.22
>=10.5.0, <10.5.13
>=10.6.0, <10.6.5
10.3.32
10.4.22
10.5.13
10.6.5
bitnami mysql-client
>=10.3.0, <10.3.32
>=10.4.0, <10.4.22
>=10.5.0, <10.5.13
>=10.6.0, <10.6.5
10.3.32
10.4.22
10.5.13
10.6.5

Classification

Technology feeds

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.