🛡️ CVE-2026-43944 — electerm

🔴 CVSS 9.5 — Critical ✅ No Known Exploit CWE-20 OSV
9.5
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

Electerm users can run dangrous code through link or command line

Impact

_Arbitrary local code execution via deep links, CLI --opts, or crafted shortcuts. Affected users: electerm installs that accept protocol URLs or CLI options (affected versions listed in the original report). Exploit requires clicking a crafted electerm://... link or opening a crafted shortcut/command that launches electerm with attacker-controlled opts._

Patches

Fixed in version > 3.8.8

commits:

  • https://github.com/electerm/electerm/commit/8a6a17951e96d715f5a231532bbd8303fe208700
  • https://github.com/electerm/electerm/commit/a79e06f4a1f0ac6376c3d2411ef4690fa0377742
  • https://github.com/electerm/electerm/commit/0599e67069b00e376a2e962649aaad6096e63507

Workarounds

  • Disable or unregister electerm protocol handlers (Deep Link settings) and avoid clicking electerm:// links.
  • Do not run electerm with untrusted --opts arguments or open .lnk / .desktop files from untrusted sources.
  • Restrict which users can launch electerm on shared machines and avoid leaving electerm installed in locations reachable by other users.
  • As a temporary measure, run electerm in a confined account or sandbox (non-admin user) to reduce impact.

References

  • Report / credit: https://github.com/Curly-Haired-Baboon
  • Electerm releases: https://github.com/electerm/electerm/releases

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs no privileges on the target. A user must be tricked into taking some action. Rated impact: confidentiality high, integrity high, availability high.

Weakness class

CVE-2026-43944 is classified as CWE-20: Improper Input Validation. The application accepts input without checking that it has the expected form, so malformed values reach code that assumes they are well formed.

Affected software

CVE-2026-43944 is recorded against 1 package.

  • electerm

Timeline and source

Published on 8 May 2026 and last revised on 17 June 2026. No public exploit is currently recorded for this entry. A vendor advisory or fix has been published. Record sourced from OSV.

References

github.com (Web)
nvd.nist.gov (Advisory)
github.com (Web)
github.com (Web)
github.com (Web)
github.com (Package)
github.com (Web)

Details

Severity CRITICAL
CVSS Score 9.5
CVSS Vector CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
CWE CWE-20
Public Exploit ✅ No
Source OSV
Published 2026-05-08
Updated 2026-08-12
Modified 2026-06-17

Affected Packages

Software From version Fixed in
electerm — —

Similar Threats

Exploit Protection

Are you running electerm?

CVE-2026-43944 carries CVSS 9.5 Critical rating. BotEraser checks your installation against this and other known CVE records, and blocks IPs associated with exploit activity.

Check My Site For CVE-2026-43944 →

No credit card required  ·  Results in minutes

ⓘ Data Notice: The information presented above has been compiled from publicly available internet sources. Boteraser aggregates this data solely for informational purposes and does not independently classify, evaluate, or endorse any findings about the vulnerabilities listed. The accuracy and completeness of this information is the sole responsibility of the original publishers. Boteraser and its operators accept no liability for any decisions made based on this data.