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CVE-2026-45787

Electerm vulnerability

9.1 CRITICALEPSS 0.15%
  1. Published28 May 2026

Description

electerm is an open-sourced terminal/ssh/sftp/telnet/serialport/RDP/VNC/Spice/ftp client. Prior to 3.9.5, deterministic AES-192-CBC with a fixed zero IV, constant KDF salt, and no MAC leads to confidentiality and integrity failures for synced bookmark/profile data. Attackers can crack common passwords across installs and perform undetected ciphertext bit-flips to alter config/bookmarks. This vulnerability is fixed in 3.9.5.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Affected products

Electerm< 3.9.5

Remediation

Fixed in
Electerm≥ 3.9.5

References

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Frequently asked

Is CVE-2026-45787 being actively exploited?

CVE-2026-45787 is not in the CISA KEV catalog. Its EPSS exploit probability is 0.15%.

How severe is CVE-2026-45787?

CVE-2026-45787 has a CVSS 3.1 base score of 9.1, rated critical. EPSS estimates a 0.15% probability of exploitation.

Which products are affected by CVE-2026-45787?

Affected products include Electerm.

How do I fix CVE-2026-45787?

Upgrade affected software to a fixed version, for example Electerm 3.9.5 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2026-45787 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.