Is CVE-2015-3152 in the CISA KEV catalog?

No. CVE-2015-3152 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2015-3152?

CVE-2015-3152 has a CVSS v3 base score of 5.9 (MEDIUM).

What is the EPSS score for CVE-2015-3152?

CVE-2015-3152 has an EPSS score of 7.08% (94th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2015-3152?

Upgrade MariaDB to 10.0.20 or later.

CVE & CISA-KEV Catalog

CVE-2015-3152

MEDIUMEPSS 94th pctl

5.9

CVSS v3

NVD

Description

Oracle MySQL before 5.7.3, Oracle MySQL Connector/C (aka libmysqlclient) before 6.1.3, and MariaDB before 5.5.44 use the --ssl option to mean that SSL is optional, which allows man-in-the-middle attackers to spoof servers via a cleartext-downgrade attack, aka a "BACKRONYM" attack.

CWE-295Improper Certificate Validation

How to fix

Remediation Available

MariaDBWindows application

Affected:10.0.0 10.0.20Fixed in:10.0.20MariaDB Corporation Ab

Affected:5.5.0 5.5.44Fixed in:5.5.44MariaDB Corporation Ab

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityHigh

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityHigh

AvailabilityNone

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

Exploit Intelligence

7.08%probability of exploitation in 30 days

94thpercentile

High risk: more likely to be exploited than 94% of all known CVEs.

References

Patch1

github.com

Exploit1

mysqlblog.fivefarmers.com

Vendor Advisory2

Third-Party Advisory13

Related Vulnerabilities

Other CWE-295 (Improper Certificate Validation) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2015-4000	Low	3.7	100%	-	Fix
CVE-2020-0601	High	8.1	89%	KEV	Fix
CVE-2009-3555	Critical	9.8	87%	-	Fix
CVE-2022-26923	High	8.8	83%	KEV	Fix
CVE-2023-27823	Critical	9.8	53%	-	-
CVE-2022-42979	High	8.8	24%	-	-

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-05-06.