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CVE-2018-3247

20
FAUCET Score

CVE-2018-3247 is a medium-severity vulnerability affecting the MySQL Server component (specifically the Server: Merge subcomponent) in Oracle MySQL versions 5.6.41 and prior, 5.7.23 and prior, and 8.0.12 and prior. This easily exploitable flaw allows a high-privileged attacker with network access to cause a complete denial of service (DOS) through a repeatable crash or hang, and unauthorized data modification (insert, update, delete). The CVSS 3.0 base score is 5.5, indicating low integrity impact and high availability impact. There is currently no known public exploit code (Metasploit, Nuclei, ExploitDB), nor is it listed on CISA's KEV catalog, and it has garnered minimal community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
>= 5.6.0, <= 5.6.41CPE matchmatch criteria
cpe:2.3:a:oracle:mysql:*:*:*:*:*:*:*:*
>= 5.7.0, <= 5.7.23CPE matchmatch criteria
cpe:2.3:a:oracle:mysql:*:*:*:*:*:*:*:*
>= 8.0.0, <= 8.0.12CPE matchmatch criteria
cpe:2.3:a:oracle:mysql:*:*:*:*:*:*:*:*
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:a:netapp:oncommand_insight:-:*:*:*:*:*:*:*
>= 9.4CPE matchmatch criteria
cpe:2.3:a:netapp:oncommand_unified_manager:*:*:*:*:*:vmware_vsphere:*:*

CVSS Data

CVSS version used by this source: 3.0

5.5MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
LOW
Availability Impact
HIGH
Exploitability Score
1.2
Impact Score
4.2
CvssVersion
3.0

Exploit Intelligence

EPSS Score
2.82%
Probability of exploitation in next 30 days
EPSS Percentile
85.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0282 is in the 95th percentile among its peer group of 3,563 CVEs.

Social Chatter

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

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (8)

oraclepatch availablevia nvd_reference
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 6Fixed in: rh-mysql57-mysql-0:5.7.24-2.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 6.7 EUSFixed in: rh-mysql57-mysql-0:5.7.24-2.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 7Fixed in: rh-mysql57-mysql-0:5.7.24-1.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 7.3 EUSFixed in: rh-mysql57-mysql-0:5.7.24-1.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 7.4 EUSFixed in: rh-mysql57-mysql-0:5.7.24-1.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 7.5 EUSFixed in: rh-mysql57-mysql-0:5.7.24-1.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 7.6 EUSFixed in: rh-mysql57-mysql-0:5.7.24-1.el7
View patch

Vendor Advisories (1)

redhatCVE-2018-3247Moderate

mysql: Server: Merge unspecified vulnerability (CPU Oct 2018)

Oct 16, 2018

References

access.redhat.com / errata/RHSA-2018:3655
Third Party Advisory
security.netapp.com / advisory/ntap-20181018-0002
Third Party Advisory
usn.ubuntu.com / 3799-1
Third Party Advisory
oracle.com / technetwork/security-advisory/cpuoct2018-4428296.html
PatchVendor Advisory
securityfocus.com / bid/105600
Third Party AdvisoryVDB Entry
securitytracker.com / id/1041888
Third Party AdvisoryVDB Entry