CVE-2025-50103: Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Security: LDAP Auth)

Routine

MEDIUM 4.4WATCHLISTUPGRADE

CVE-2025-50103 is a medium-severity flaw (CVSS 4.4) affecting mysql. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Security: LDAP Auth). Supported versions that are affected are 9.0.0-9.3.0. Difficult to exploit vulnerability allows high 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. C

Why this priority

On your watchlist

A fixed release or distro patch exists.

Risk facts

CVSS score	4.4 (Medium)
Attack vector	Network (remote)
Attack complexity	High
Privileges needed	High
User interaction	None
EPSS exploit chance	0.5% (top 59%)
CISA exploited list	No
Weakness	CWE-400
Published	2025-07-15
Last modified	2026-06-17

Publisher (CNA): Oracle · Vendor: oracle

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2025-07-15 20:15 UTCPublished CVE record published
2026-06-17 09:34 UTCUpdated Record last modified

oracle mysql UPGRADE

Affected: >= 9.0.0 and <= 9.3.0

Fixed in: newer than 9.3.0

Safe to downgrade to: a release before 9.0.0

1. Check installed version

apt-cache policy mysql || rpm -q mysql || mysql --version

2. UPGRADE to newer than 9.3.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade mysql

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade mysql

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

3. If no update is available yet, DOWNGRADE to a release before 9.0.0 (Debian / Ubuntu)

apt-cache madison mysql sudo apt install mysql=<VERSION_BEFORE_9.0.0> sudo apt-mark hold mysql

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list mysql sudo dnf downgrade mysql-<VERSION_BEFORE_9.0.0> sudo dnf versionlock add mysql

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2025-50103?

mysql: upgrade to newer than 9.3.0. Exact commands for each OS are on this page.

Is CVE-2025-50103 being exploited?

CVE-2025-50103 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2025-50103 affect?

CVE-2025-50103 affects mysql. Severity is medium (CVSS 4.4). Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Security: LDAP Auth). Supported versions that are affected are 9.0.0-9.3.0. Difficult to exploit vulnerability allows high privileged attacker with network acces

How urgent is CVE-2025-50103?

Priority 31/100. On your watchlist

Software pages

MySQL vulnerabilities

Related CVEs

CVE-2026-34318 MEDIUM 5.8 UPGRADE Vulnerability in the MySQL Shell product of Oracle MySQL (component: Shell: Core Client)
CVE-2026-34317 MEDIUM 5.0 UPGRADE Vulnerability in the MySQL Shell product of Oracle MySQL (component: Shell: Core Client)
CVE-2026-34319 MEDIUM 5.0 UPGRADE Vulnerability in the MySQL Shell product of Oracle MySQL (component: Shell: Core Client)
CVE-2025-50104 LOW 2.7 UPGRADE Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: DDL)
CVE-2025-50102 MEDIUM 4.9 UPGRADE Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Optimizer)

References

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