Is CVE-2017-3258 in the CISA KEV catalog?

No. CVE-2017-3258 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2017-3258?

CVE-2017-3258 has a CVSS v3 base score of 6.5 (MEDIUM).

What is the EPSS score for CVE-2017-3258?

CVE-2017-3258 has an EPSS score of 3.10% (86th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2017-3258?

Upgrade mysql-5.5 on ubuntu 14.04 to 5.5.54-0ubuntu0.14.04.1 or later. Fixes are available for 5 affected products.

CVE & CISA-KEV Catalog

CVE-2017-3258

MEDIUMEPSS 86th pctl

6.5

CVSS v3

NVD

Description

Vulnerability in the MySQL Server component of Oracle MySQL (subcomponent: Server: DDL). Supported versions that are affected are 5.5.53 and earlier, 5.6.34 and earlier and 5.7.16 and earlier. Easily exploitable vulnerability allows low privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server. CVSS v3.0 Base Score 6.5 (Availability impacts).

CWE-20Improper Input Validation

How to fix

Remediation Available

mysql-5.5Ubuntu

Fixed in:5.5.54-0ubuntu0.14.04.1USN-3174-1

mysql-5.7Ubuntu

Fixed in:5.7.17-0ubuntu0.16.04.1USN-3174-1

mysql-server-5.5Ubuntu

Fixed in:5.5.54-0ubuntu0.14.04.1USN-3174-1

mysql-server-5.7Ubuntu

Fixed in:5.7.17-0ubuntu0.16.04.1USN-3174-1

MariaDBWindows application

Affected:5.5.0 5.5.54Fixed in:5.5.54MariaDB Corporation Ab

Affected:10.1.0 10.1.21Fixed in:10.1.21MariaDB Corporation Ab

Affected:10.0.0 10.0.29Fixed in:10.0.29MariaDB Corporation Ab

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 ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

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

Exploit Intelligence

3.10%probability of exploitation in 30 days

86thpercentile

Elevated risk: more likely to be exploited than 86% of all known CVEs.

References

Patch1

oracle.com

Third-Party Advisory11

Related Vulnerabilities

Other CWE-20 (Improper Input Validation) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2024-3400	Critical	10.0	100%	KEV + Ransom	-
CVE-2021-45105	Medium	5.9	100%	-	Fix
CVE-2021-44228	Critical	10.0	100%	KEV + Ransom	Fix
CVE-2021-21985	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2018-7600	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2020-3452	High	7.5	100%	KEV	Fix

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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 2026-05-13.