How severe is CVE-2017-3256?

CVE-2017-3256 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2017-3256 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (82nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-3256?

CVE-2017-3256 affects Oracle Mysql. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2017-3256?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2017-3256 published?

CVE-2017-3256 was published on 2017-01-27 and last updated on 2026-06-17.

CVE-2017-3256

CVE-2017-3256 is a medium-severity vulnerability in Oracle Mysql with a CVSS 3.x base score of 6.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-20.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v2: 4.0
EPSS exploit prediction: 2% (82nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Oracle Mysql
Published: 2017-01-27
Last modified: 2026-06-17

Description

Vulnerability in the MySQL Server component of Oracle MySQL (subcomponent: Server: Replication). Supported versions that are affected are 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).

Frequently asked questions

What is CVE-2017-3256?: Vulnerability in the MySQL Server component of Oracle MySQL (subcomponent: Server: Replication). Supported versions that are affected are 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).
How severe is CVE-2017-3256?: CVE-2017-3256 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2017-3256 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (82nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-3256?: CVE-2017-3256 affects Oracle Mysql. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2017-3256?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2017-3256 published?: CVE-2017-3256 was published on 2017-01-27 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:oracle:mysql:*:*:*:*:*:*:*:*

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Threat intelligence

Threat-intel indicators referencing this CVE:

85.95.166.40 (ipv4-addr)
132.148.155.138 (ipv4-addr)
180.76.184.79 (ipv4-addr)
159.253.22.85 (ipv4-addr)
122.51.73.24 (ipv4-addr)