CVE-2017-14474: In the MMM::Agent::Helpers::_execute function in MySQL Multi-Master Replication Manager (MMM) mmm_agentd 2.2.1

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CRITICAL 9.8REMOTEWATCHLISTDOWNGRADE

CVE-2017-14474 is a critical-severity flaw (CVSS 9.8) affecting mysql multi-master replication manager. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

In the MMM::Agent::Helpers::_execute function in MySQL Multi-Master Replication Manager (MMM) mmm_agentd 2.2.1, a specially crafted MMM protocol message can cause a shell command injection resulting in arbitrary command execution with the privileges of the mmm\_agentd process. An attacker that can initiate a TCP session with mmm\_agentd can trigger this vulnerability.

Why this priority

Critical severity
EPSS top 7%: very likely to be exploited
Public exploit reference
Remotely exploitable, no login, no user action
On your watchlist

A fixed release or distro patch exists.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	6.1% (top 7%)
CISA exploited list	No
Weakness	CWE-78
Published	2018-05-09
Last modified	2026-06-17

Publisher (CNA): Talos · Vendor: mysql-mmm

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

Am I affected?

Timeline

2018-05-09 20:29 UTCPublished CVE record published
2026-06-17 01:06 UTCUpdated Record last modified

mysql-mmm mysql multi-master replication manager DOWNGRADE

Affected: 2.2.1

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.2.1

1. Check installed version

apt-cache policy mysql-multi-master-replication-manager || rpm -q mysql-multi-master-replication-manager || mysql-multi-master-replication-manager --version

2. No fixed release: DOWNGRADE to a release before 2.2.1 (Debian / Ubuntu)

apt-cache madison mysql-multi-master-replication-manager sudo apt install mysql-multi-master-replication-manager=<VERSION_BEFORE_2.2.1> sudo apt-mark hold mysql-multi-master-replication-manager

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list mysql-multi-master-replication-manager sudo dnf downgrade mysql-multi-master-replication-manager-<VERSION_BEFORE_2.2.1> sudo dnf versionlock add mysql-multi-master-replication-manager

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.

Exact fixes by distribution

A distro patch exists: prefer upgrading over downgrading.

Fedora 46 · librepo · FIXED · 1.21.3-1.fc46 · FEDORA-2026-c502136ca7 · source

sudo dnf upgrade --advisory=FEDORA-2026-c502136ca7

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-2017-14474?

mysql multi-master replication manager: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2017-14474 being exploited?

CVE-2017-14474 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-2017-14474 affect?

CVE-2017-14474 affects mysql multi-master replication manager. Severity is critical (CVSS 9.8). In the MMM::Agent::Helpers::_execute function in MySQL Multi-Master Replication Manager (MMM) mmm_agentd 2.2.1, a specially crafted MMM protocol message can cause a shell command injection resulting in arbitrary command execution with the p

How urgent is CVE-2017-14474?

Priority 73/100. Critical severity; EPSS top 7%: very likely to be exploited; Public exploit reference; Remotely exploitable, no login, no user action; On your watchlist

Software pages

MySQL vulnerabilities

Related CVEs

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CVE-2017-14477 CRITICAL 9.8 DOWNGRADE In the MMM::Agent::Helpers::Network::add_ip function in MySQL Multi-Master Replication Manager (MMM) mmm_agent

References

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