CVE-2026-73223
Malicious SFTP server can write files outside temp dir via electerm path-traversal.
Is CVE-2026-73223 being exploited?
Not confirmed. CVE-2026-73223 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.31% probability of exploitation in the next 30 days.
How severe is CVE-2026-73223?
CVE-2026-73223 is rated High with a CVSS score of 8.1. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-73223?
Yes. A fix has been recorded for CVE-2026-73223. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-73223 affect?
CVE-2026-73223 affects electerm < 3.15.120 (desktop: Windows/macOS/Linux). Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-73223?
Upgrade electerm to >=3.15.120 and avoid untrusted SFTP servers.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Malicious SFTP server can perform path-traversal to write arbitrary files on client, enabling possible code execution/local compromise.
Immediate action required
- affected< 3.15.120
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.