CVE-2023-30367: Multi-Remote Next Generation Connection Manager (mRemoteNG) is free software that enables users to store and m

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HIGH 7.5REMOTEUPGRADE

CVE-2023-30367 is a high-severity flaw (CVSS 7.5) affecting mremoteng. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Multi-Remote Next Generation Connection Manager (mRemoteNG) is free software that enables users to store and manage multi-protocol connection configurations to remotely connect to systems. mRemoteNG configuration files can be stored in an encrypted state on disk. mRemoteNG version <= v1.76.20 and <= 1.77.3-dev loads configuration files in plain text into memory (after decrypting them if necessary) at application start-up, even if no connection ha

Why this priority

High severity
Public exploit reference
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.5% (top 59%)
CISA exploited list	No
Weakness	CWE-312
Published	2023-07-26
Last modified	2026-10-23

Publisher (CNA): MITRE · Vendor: mremoteng

Am I affected?

Timeline

2023-07-26 21:15 UTCPublished CVE record published
2026-10-23 23:10 UTCUpdated Record last modified

mremoteng mremoteng UPGRADE

Affected: <= 1.76.20 · 1.77.2-nb · 1.77.3-nb

Fixed in: newer than 1.76.20

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to newer than 1.76.20 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade mremoteng

Note

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

Exact fixes by distribution

Fedora 46 · rubygem-eventmachine · FIXED · 1.2.7-37.fc46 · FEDORA-2026-7194c202a2 · source

sudo dnf upgrade --advisory=FEDORA-2026-7194c202a2

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

GitHub PoC: S1lkys/CVE-2023-30367-mRemoteNG-password-dumper (18 stars)

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.

References

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