CVE-2020-28912

HIGH
7
CVSS Score
Published: December 24, 2020 at 07:49 PM UTC
Updated: June 17, 2026 at 03:10 AM UTC
1 product affected across 1 vendorMariaDB· also runs on 1 platform

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Severity
HIGH7
Exploit prediction
EPSS 0.4%

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 10.1.4810.2.0 ≤ v < 10.2.3510.3.0 ≤ v < 10.3.2610.4.0 ≤ v < 10.4.1610.5.0 ≤ v < 10.5.7
Affected range stops below 10.1.48, so it looks safe — our inference, not a vendor statement
Affected range stops below 10.2.35, so it looks safe — our inference, not a vendor statement
Affected range stops below 10.3.26, so it looks safe — our inference, not a vendor statement
Affected range stops below 10.4.16, so it looks safe — our inference, not a vendor statement
Affected range stops below 10.5.7, so it looks safe — our inference, not a vendor statement
microsoft-windows (environment)

Runs on — not affected

The affected product only carries this flaw when running on these platforms. The platforms themselves are not vulnerable.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (2)

x_refsource_MISCThird Party Advisory
https://hackerone.com/reports/1019891
x_refsource_MISCIssue TrackingVendor Advisory
https://jira.mariadb.org/browse/MDEV-24040

CVSS

Attack Vector
LOCAL
Complexity
HIGH
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
NVD-CWE-Other

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