CVE-2026-45787

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 v3.1 Score

9.1

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

EPSS — Exploit Prediction

0.0011

Probability of exploitation

0.01%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-326 CWE-326

CWE-329 CWE-329

CWE-353 CWE-353

CWE-759 CWE-759

CWE-916 CWE-916

Affected Products

Vendor	Product	Versions
electerm_project	electerm	< 3.9.5

References

Advisories & Patches

https://github.com/electerm/electerm/commit/9dd8295e37d53396b980cd45dfc5ed11ad79b937 https://github.com/electerm/electerm/security/advisories/GHSA-g29v-q6h7-76wh

Frequently Asked Questions

What is CVE-2026-45787? +

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. It has a CVSS v3.1 base score of 9.1 (CRITICAL).

How severe is CVE-2026-45787? +

CVE-2026-45787 has a CVSS v3.1 score of 9.1 out of 10, rated CRITICAL. This is a critical vulnerability that should be patched immediately. The EPSS score is 0.0011, placing it in the 0th percentile for exploitation probability.

What products are affected by CVE-2026-45787? +

CVE-2026-45787 affects products from electerm_project, specifically: electerm. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2026-45787? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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