CVE-2026-45353: electerm is an open-sourced terminal/ssh/sftp/telnet/serialport/RDP/VNC/Spice/ftp client

Routine

HIGH 7.8UPGRADE

CVE-2026-45353 is a high-severity flaw (CVSS 7.8) affecting electerm. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

electerm is an open-sourced terminal/ssh/sftp/telnet/serialport/RDP/VNC/Spice/ftp client. From 3.0.6 to 3.8.8, This vulnerability is fixed in 3.9.0.

Why this priority

High severity

A fixed release or distro patch exists.

Risk facts

CVSS score	7.8 (High)
Attack vector	Local
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.1% (top 98%)
CISA exploited list	No
Weakness	CWE-94, CWE-732, CWE-940
Published	2026-05-28
Last modified	2026-06-17

Publisher (CNA): GitHub, Inc. · Vendor: electerm project

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

Am I affected?

Timeline

2026-05-28 18:16 UTCPublished CVE record published
2026-06-17 10:51 UTCUpdated Record last modified

electerm project electerm UPGRADE

Affected: >= 3.0.6 and < 3.9.0

Fixed in: 3.9.0

Safe to downgrade to: a release before 3.0.6

1. Check installed version

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

2. UPGRADE to 3.9.0 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade electerm

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 3.0.6 (Debian / Ubuntu)

apt-cache madison electerm sudo apt install electerm=<VERSION_BEFORE_3.0.6> sudo apt-mark hold electerm

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

dnf --showduplicates list electerm sudo dnf downgrade electerm-<VERSION_BEFORE_3.0.6> sudo dnf versionlock add electerm

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-2026-45353?

electerm: upgrade to 3.9.0. Exact commands for each OS are on this page.

Is CVE-2026-45353 being exploited?

CVE-2026-45353 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-2026-45353 affect?

CVE-2026-45353 affects electerm. Severity is high (CVSS 7.8). electerm is an open-sourced terminal/ssh/sftp/telnet/serialport/RDP/VNC/Spice/ftp client. From 3.0.6 to 3.8.8, This vulnerability is fixed in 3.9.0.

How urgent is CVE-2026-45353?

Priority 28/100. High severity

Software pages

WinRM and RDP vulnerabilities

Related CVEs

CVE-2026-45787 CRITICAL 9.1 UPGRADE electerm is an open-sourced terminal/ssh/sftp/telnet/serialport/RDP/VNC/Spice/ftp client
CVE-2026-43944 CRITICAL 9.6 UPGRADE electerm is an open-sourced terminal/ssh/sftp/telnet/serialport/RDP/VNC/Spice/ftp client
CVE-2026-43943 HIGH 7.8 UPGRADE electerm is an open-sourced terminal/ssh/sftp/telnet/serialport/RDP/VNC/Spice/ftp client
CVE-2026-43942 MEDIUM 5.5 UPGRADE electerm is an open-sourced terminal/ssh/sftp/telnet/serialport/RDP/VNC/Spice/ftp client
CVE-2026-43941 CRITICAL 9.6 UPGRADE electerm is an open-sourced terminal/ssh/sftp/telnet/serialport/RDP/VNC/Spice/ftp client

References

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