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CVE-2018-3123

21
FAUCET Score

CVE-2018-3123 is a difficult-to-exploit vulnerability within the libmysqld subcomponent of Oracle MySQL Server, affecting versions 5.6.42 and prior, 5.7.24 and prior, and 8.0.13 and prior. An unauthenticated attacker with network access can compromise the server, leading to unauthorized access to critical or all accessible data. With a CVSS 3.0 base score of 5.9 (Medium), this vulnerability primarily impacts confidentiality. There is no known active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= 5.6.0, <= 5.6.42CPE matchmatch criteria
cpe:2.3:a:oracle:mysql:*:*:*:*:*:*:*:*
>= 5.7.0, <= 5.7.24CPE matchmatch criteria
cpe:2.3:a:oracle:mysql:*:*:*:*:*:*:*:*
>= 8.0.0, <= 8.0.13CPE matchmatch criteria
cpe:2.3:a:oracle:mysql:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

5.9MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
2.2
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
2.06%
Probability of exploitation in next 30 days
EPSS Percentile
79.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0206 is in the 65th percentile among its peer group of 19,958 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

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

Remediation

Patch Available

Vendor Patches (2)

oraclepatch availablevia nvd_reference
View patch
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: mysql

Vendor Advisories (1)

redhatCVE-2018-3123Moderate

mysql: Server: libmysqld unspecified vulnerability (CPU Apr 2019)

Apr 16, 2019

References

support.f5.com / csp/article/K58502649
Third Party Advisory
oracle.com / technetwork/security-advisory/cpuapr2019-5072813.html
PatchVendor Advisory