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CVE-2020-7221

20
FAUCET Score

CVE-2020-7221 is a privilege escalation vulnerability affecting MariaDB versions 10.4.7 through 10.4.11, allowing a local 'mysql' user to gain root privileges due to unsafe chown and chmod operations during mysql_install_db execution, specifically via a symlink attack. This vulnerability carries a high CVSS score of 7.8, indicating a local attack vector with low attack complexity and the potential for high impact on confidentiality, integrity, and availability. There is currently no known active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= 10.4.7, <= 10.4.11CPE matchmatch criteria
cpe:2.3:a:mariadb:mariadb:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.8HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.67%
Probability of exploitation in next 30 days
EPSS Percentile
48.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0067 is in the 85th percentile among its peer group of 17,070 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Advisories (1)

redhatCVE-2020-7221Moderate

mariadb: mysql_install_db allows privilege escalation due to unsafe chown and chmod operations

Feb 4, 2020

References

bugzilla.suse.com / show_bug.cgi
ExploitIssue TrackingThird Party Advisory
github.com / MariaDB/server/commit/9d18b6246755472c8324bf3e20e234e08ac45618
Third Party Advisory
seclists.org / oss-sec/2020/q1/55
ExploitMailing ListThird Party Advisory