How severe is CVE-2020-15180?

CVE-2020-15180 has a CVSS 3.x base score of 9.0, rated critical severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2020-15180 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 6% (93rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-15180?

CVE-2020-15180 primarily affects Mariadb. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2020-15180?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2020-15180 published?

CVE-2020-15180 was published on 2021-05-27 and last updated on 2026-06-17.

CVE-2020-15180

CVE-2020-15180 is a critical-severity vulnerability in Mariadb with a CVSS 3.x base score of 9.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-77.

Key facts

Severity: Critical (CVSS 3.x base score 9.0)
CVSS v2: 6.8
EPSS exploit prediction: 6% (93rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-77
Affected product: Mariadb
Published: 2021-05-27
Last modified: 2026-06-17

Description

A flaw was found in the mysql-wsrep component of mariadb. Lack of input sanitization in `wsrep_sst_method` allows for command injection that can be exploited by a remote attacker to execute arbitrary commands on galera cluster nodes. This threatens the system's confidentiality, integrity, and availability. This flaw affects mariadb versions before 10.1.47, before 10.2.34, before 10.3.25, before 10.4.15 and before 10.5.6.

Frequently asked questions

What is CVE-2020-15180?: A flaw was found in the mysql-wsrep component of mariadb. Lack of input sanitization in `wsrep_sst_method` allows for command injection that can be exploited by a remote attacker to execute arbitrary commands on galera cluster nodes. This threatens the system's confidentiality, integrity, and availability. This flaw affects mariadb versions before 10.1.47, before 10.2.34, before 10.3.25, before 10.4.15 and before 10.5.6.
How severe is CVE-2020-15180?: CVE-2020-15180 has a CVSS 3.x base score of 9.0, rated critical severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2020-15180 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 6% (93rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-15180?: CVE-2020-15180 primarily affects Mariadb. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2020-15180?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2020-15180 published?: CVE-2020-15180 was published on 2021-05-27 and last updated on 2026-06-17.

References

Affected products (5)

cpe:2.3:a:mariadb:mariadb:*:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
cpe:2.3:a:percona:xtradb_cluster:*:*:*:*:*:*:*:*
cpe:2.3:a:galeracluster:galera_cluster_for_mysql:*:*:*:*:*:*:*:*

More vulnerabilities in Mariadb

CVE-2026-49261 — Critical (CVSS 10.0): MariaDB server is a community developed fork of MySQL server. Versions 10.6.1 through 10.6.26, 10.11.1 through…
CVE-2012-2750 — Critical (CVSS 10.0): Unspecified vulnerability in MySQL 5.5.x before 5.5.23 has unknown impact and attack vectors related to a "Security…
CVE-2026-92262 — Critical (CVSS 9.9): MariaDB server is a community developed fork of MySQL server. From 10.6.1 until 10.6.28, 10.11.19, 11.4.13, 11.8.9,…
CVE-2026-85748 — Critical (CVSS 9.9): MariaDB server is a community developed fork of MySQL server. From 12.3.1 until 12.3.3 and 13.0.2, SYS_REFCURSOR…
CVE-2026-85746 — Critical (CVSS 9.9): MariaDB server is a community developed fork of MySQL server. From 10.6.1 until 10.6.28, 10.11.19, 11.4.13, 11.8.9,…
CVE-2026-44170 — Critical (CVSS 9.8): MariaDB server is a community developed fork of MySQL server. From versions 10.6.1 to before 10.6.26, 10.11.1 to before…

All CVEs affecting Mariadb →

Other CWE-77 (Command Injection) vulnerabilities

CVE-2026-110957 — Critical (CVSS 10.0): A vulnerability has been found in Wavlink WL-WN530BE2-A up to M30BE2_V250604. The affected element is the function…
CVE-2026-110536 — Critical (CVSS 10.0): A vulnerability was determined in D-Link DIR-868L 2.01b05. This impacts the function system of the file /htdocs/cgibin…
CVE-2026-109110 — Critical (CVSS 10.0): A flaw has been found in Wavlink WL-WN592AX6 250422. This issue affects the function system of the component wmapd…
CVE-2026-108804 — Critical (CVSS 10.0): A vulnerability was detected in TRENDnet TEW-751DR, TEW-752DRU and TEW733GR 1.03B01/1.03B03. Affected is the function…
CVE-2026-108576 — Critical (CVSS 10.0): A vulnerability was found in TOZED X300 up to 6.01.3. This vulnerability affects the function process_ping of the…
CVE-2025-70518 — Critical (CVSS 10.0): The management portal's diagnostic ping tool of Fanvil x7a firmware version 2.6.0.1182 does not handle user supplied…

Browse all CWE-77 (Command Injection) vulnerabilities →