Is CVE-2017-3639 in the CISA KEV catalog?

No. CVE-2017-3639 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2017-3639?

CVE-2017-3639 has a CVSS v3 base score of 4.9 (MEDIUM).

What is the EPSS score for CVE-2017-3639?

CVE-2017-3639 has an EPSS score of 2.45% (82th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2017-3639?

Upgrade mysql-5.5 on ubuntu 14.04 to 5.5.57-0ubuntu0.14.04.1 or later. Fixes are available for 4 affected products.

CVE & CISA-KEV Catalog

CVE-2017-3639

MEDIUMEPSS 82th pctl

4.9

CVSS v3

NVD

Description

Vulnerability in the MySQL Server component of Oracle MySQL (subcomponent: Server: DML). Supported versions that are affected are 5.7.18 and earlier. Easily exploitable vulnerability allows high 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 3.0 Base Score 4.9 (Availability impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H).

How to fix

Remediation Available

mysql-5.5Ubuntu

Fixed in:5.5.57-0ubuntu0.14.04.1USN-3357-1

mysql-5.7Ubuntu

Fixed in:5.7.19-0ubuntu0.16.04.1USN-3357-1

mysql-server-5.5Ubuntu

Fixed in:5.5.57-0ubuntu0.14.04.1USN-3357-1

mysql-server-5.7Ubuntu

Fixed in:5.7.19-0ubuntu0.16.04.1USN-3357-1

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 RequiredHigh

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

Exploit Intelligence

2.45%probability of exploitation in 30 days

82ndpercentile

Elevated risk: more likely to be exploited than 82% of all known CVEs.

References

Patch1

oracle.com

Third-Party Advisory2

Other references1

access.redhat.com

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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.