PatchSiren

PatchSiren cyber security CVE debrief

CVE-2016-8318 Oracle CVE debrief

CVE-2016-8318 is a denial-of-service issue in the MySQL Server encryption-related security component. Oracle and NVD describe it as network-reachable, low-privileged, and capable of causing a hang or repeatable crash in affected MySQL Server versions, with successful exploitation requiring human interaction from someone other than the attacker.

Vendor
Oracle
Product
CVE-2016-8318
CVSS
MEDIUM 6.8
CISA KEV
Not listed in stored evidence
Original CVE published
2017-01-27
Original CVE updated
2026-05-13
Advisory published
2017-01-27
Advisory updated
2026-05-13

Who should care

Administrators and operators running Oracle MySQL Server 5.6.34 and earlier or 5.7.16 and earlier, especially where the database is reachable over the network or supports user-driven workflows.

Technical summary

NVD lists the flaw under CVSS v3.0 vector CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:N/I:N/A:H, indicating a network-accessible issue requiring low privileges and user interaction, with availability impact only. The affected CPE ranges are Oracle MySQL 5.6.0 through 5.6.34 and 5.7.0 through 5.7.16. The reported outcome is unauthorized ability to cause a hang or frequently repeatable crash (complete DoS) of MySQL Server.

Defensive priority

Medium; raise to High for exposed or business-critical MySQL instances because the impact is a repeatable availability loss.

Recommended defensive actions

  • Upgrade Oracle MySQL Server to a version newer than 5.6.34 or 5.7.16, as applicable.
  • Review Oracle CPU January 2017 guidance for the vendor-recommended fix path.
  • Restrict network access to MySQL servers so only trusted systems can connect.
  • Reduce exposure of user-interactive workflows that could satisfy the required human-interaction condition.
  • Monitor for service hangs or crash loops on affected MySQL instances and treat them as potential exploitation indicators.

Evidence notes

This debrief is based on the NVD CVE record and the Oracle CPU January 2017 advisory reference included in the source corpus. The issue description, affected version ranges, CVSS vector, and impact statements are taken from the supplied NVD metadata; no exploit details are included.

Official resources

CVE published by NVD/CVE on 2017-01-27; NVD metadata was last modified on 2026-05-13. Use the published CVE date for vulnerability timing context.