CVE-2017-3309
Vulnerability in the MySQL Server component of Oracle MySQL (subcomponent: Server: Optimizer).
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (3.10%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
Vulnerability in the MySQL Server component of Oracle MySQL (subcomponent: Server: Optimizer). Supported versions that are affected are 5.5.54 and earlier, 5.6.35 and earlier and 5.7.17 and earlier. Easily "exploitable" vulnerability allows low privileged attacker with network access via multiple protocols to compromise MySQL Server. While the vulnerability is in MySQL Server, attacks may significantly impact additional products. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server. CVSS 3.0 Base Score 7.7 (Availability impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H).
- CVSS 3.1
- 7.7 HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
- EPSS
- 3.10% probability · 88th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Affected
- oracle/mysql · debian/debian linux · mariadb/mariadb · redhat/enterprise linux desktop · redhat/enterprise linux eus · redhat/enterprise linux server · redhat/enterprise linux server aus · redhat/enterprise linux server tus · redhat/enterprise linux workstation
- Source
- secalert_us@oracle.com
EPSS 3.1% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://www.debian.org/security/2017/dsa-3834Third Party Advisory
- http://www.debian.org/security/2017/dsa-3944Third Party Advisory
- http://www.oracle.com/technetwork/security-advisory/cpuapr2017-3236618.htmlPatch, Vendor Advisory
- http://www.securityfocus.com/bid/97742Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1038287Broken Link, Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2017:2192Third Party Advisory
- https://access.redhat.com/errata/RHSA-2017:2787Third Party Advisory
- https://access.redhat.com/errata/RHSA-2017:2886Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:0279Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:0574Third Party Advisory
- http://www.debian.org/security/2017/dsa-3834Third Party Advisory
- http://www.debian.org/security/2017/dsa-3944Third Party Advisory
- http://www.oracle.com/technetwork/security-advisory/cpuapr2017-3236618.htmlPatch, Vendor Advisory
- http://www.securityfocus.com/bid/97742Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1038287Broken Link, Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2017:2192Third Party Advisory
- https://access.redhat.com/errata/RHSA-2017:2787Third Party Advisory
- https://access.redhat.com/errata/RHSA-2017:2886Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:0279Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:0574Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.