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Fencer Vulns
high 7.0

CVE-2020-28912 json

With MariaDB running on Windows, when local clients connect to the server over named pipes, it's possible for an unprivileged user with an…

published 2020-12-24 5 y ago modified 2026-09-08 2 mo ago also BIT-mariadb-2020-28912 , BIT-mariadb-min-2020-28912 , BIT-mysql-client-2020-28912 , EUVD-2020-21303

cvss
7.0
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 38%
public exploits
0
none known

Summary

With MariaDB running on Windows, when local clients connect to the server over named pipes, it's possible for an unprivileged user with an ability to run code on the server machine to intercept the named pipe connection and act as a man-in-the-middle, gaining access to all the data passed between the client and the server, and getting the ability to run SQL commands on behalf of the connected user. This occurs because of an incorrect security descriptor. This affects MariaDB Server before 10.1.48, 10.2.x before 10.2.35, 10.3.x before 10.3.26, 10.4.x before 10.4.16, and 10.5.x before 10.5.7. NOTE: this issue exists because certain details of the MariaDB CVE-2019-2503 fix did not comprehensively address attack variants against MariaDB. This situation is specific to MariaDB, and thus CVE-2020-28912 does NOT apply to other vendors that were originally affected by CVE-2019-2503.

Patch / fix

  • bitnami mariadb 10.1.48, 10.2.35, 10.3.26, 10.4.16, 10.5.7
  • bitnami mariadb-min 10.1.48, 10.2.35, 10.3.26, 10.4.16, 10.5.7
  • bitnami mysql-client 10.1.48, 10.2.35, 10.3.26, 10.4.16, 10.5.7
  • mariadb mariadb 10.1.48, 10.2.35, 10.3.26, 10.4.16, 10.5.7
  • mariadb Alpine 3.10 10.3.27-r0

alpine advisories ALPINE-CVE-2020-28912

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

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-2020-28912 updated cvss 7.3

mariadb: Named pipe permission issue on Windows

  • Red Hat Enterprise Linux 5 mysql55-mysql Red Hat Enterprise Linux 6 mysql, mysql-libs, mysql-test, mysql-bench, mysql-server, mysql-embedded Red Hat Enterprise Linux 7 mariadb, mariadb-libs, mariadb-test, mariadb-bench, mariadb-server, mariadb-embedded Red Hat Enterprise Linux 8 Judy, mecab, mysql, galera, mariadb, mysql-libs, +17 more Red Hat OpenStack Platform 10 (Newton) mariadb-galera, mariadb-galera-common, mariadb-galera-server Red Hat OpenStack Platform 13 (Queens) mariadb, mariadb-libs, mariadb-test, mariadb-common, mariadb-config, mariadb-errmsg, +3 more
    +1 more products
    Red Hat Software Collections rh-mysql80-mysql, rh-mariadb103-mariadb, rh-mysql80-mysql-test, rh-mysql80-mysql-common, rh-mysql80-mysql-config, rh-mysql80-mysql-errmsg, +22 more
    not affected: vulnerable code not present

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

Exploit prediction

0.44% chance of exploitation in the next 30 days, higher than 38% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 4.4 AV:L/AC:M/Au:N/C:P/I:P/A:P
OSV 3.1 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected packages

ecosystem package affected fixed in
bitnami mariadb
<10.1.48
>=10.2.0, <10.2.35
>=10.3.0, <10.3.26
>=10.4.0, <10.4.16
>=10.5.0, <10.5.7
10.1.48
10.2.35
10.3.26
10.4.16
10.5.7
bitnami mariadb-min
<10.1.48
>=10.2.0, <10.2.35
>=10.3.0, <10.3.26
>=10.4.0, <10.4.16
>=10.5.0, <10.5.7
10.1.48
10.2.35
10.3.26
10.4.16
10.5.7
bitnami mysql-client
<10.1.48
>=10.2.0, <10.2.35
>=10.3.0, <10.3.26
>=10.4.0, <10.4.16
>=10.5.0, <10.5.7
10.1.48
10.2.35
10.3.26
10.4.16
10.5.7

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.