Description
Vulnerability in the MySQL Server component of Oracle MySQL (subcomponent: Server : Pluggable Auth). Supported versions that are affected are 5.7.25 and prior and 8.0.15 and prior. Easily exploitable vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all MySQL Server accessible data. CVSS 3.0 Base Score 7.5 (Confidentiality impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N).
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Oracle | MySQL Server | 5.7.25 and prior, 8.0.15 and prior | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 18.04 LTS | mysql-5.7 | 5.7.26-0ubuntu0.18.04.1 | USN-3957-1 |
| Ubuntu 16.04 LTS | mysql-5.7 | 5.7.26-0ubuntu0.16.04.1 | USN-3957-1 |
Advisories 1
- USN-3957-1 mysql-5.7 vulnerabilities Ubuntu Security Notices (USN) · Apr 27, 2026