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CVE-2017-3305

21
FAUCET Score

CVE-2017-3305 is a vulnerability in the MySQL Server component (specifically the C API subcomponent) of Oracle MySQL, affecting versions 5.5.55 and earlier, and 5.6.35 and earlier. This vulnerability allows a low-privileged attacker with network access to compromise the MySQL Server, potentially leading to unauthorized access to critical or all accessible data. With a CVSS 3.0 Base Score of 5.3 (Medium), it is difficult to exploit, requiring high attack complexity. There is no evidence of active exploitation, publicly available exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
>= 5.5.0, <= 5.5.55CPE matchmatch criteria
cpe:2.3:a:oracle:mysql:*:*:*:*:*:*:*:*
>= 5.6.0, <= 5.6.35CPE matchmatch criteria
cpe:2.3:a:oracle:mysql:*:*:*:*:*:*:*:*
8.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

5.3MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
1.6
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.36%
Probability of exploitation in next 30 days
EPSS Percentile
68.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0136 is in the 67th percentile among its peer group of 1,425 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 (5)

oraclepatch availablevia nvd_reference
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 6Fixed in: rh-mysql56-mysql-0:5.6.37-5.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 6.7 EUSFixed in: rh-mysql56-mysql-0:5.6.37-5.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 7Fixed in: rh-mysql56-mysql-0:5.6.37-5.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 7.3 EUSFixed in: rh-mysql56-mysql-0:5.6.37-5.el7
View patch

Vendor Advisories (1)

redhatCVE-2017-3305Moderate

mysql: incorrect enforcement of ssl-mode=REQUIRED in MySQL 5.5 and 5.6

Mar 17, 2017

References

riddle.link
Third Party Advisory
access.redhat.com / errata/RHSA-2017:2787
Third Party Advisory
debian.org / security/2017/dsa-3834
Third Party Advisory
openwall.com / lists/oss-security/2017/03/17/3
Mailing ListThird Party Advisory
oracle.com / technetwork/security-advisory/cpuapr2017-3236618.html
PatchVendor Advisory
securityfocus.com / bid/97023
Third Party AdvisoryVDB Entry
securitytracker.com / id/1038287
Third Party AdvisoryVDB Entry