CVE-2026-53545
Authenticated command injection in Termix SSH tunnel disconnect allowing remote command execution.
Is CVE-2026-53545 being exploited?
Not confirmed. CVE-2026-53545 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 0.54% probability of exploitation in the next 30 days.
How severe is CVE-2026-53545?
CVE-2026-53545 is rated Critical with a CVSS score of 9.8. 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-2026-53545?
Yes. A fix has been recorded for CVE-2026-53545. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-53545 affect?
CVE-2026-53545 affects Termix < 2.3.2, Termix web management server, DELETE /ssh/tunnel/disconnect/:tunnelName endpoint, Source SSH hosts accessed via Termix. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-53545?
Upgrade Termix to 2.3.2 immediately; restrict tunnel-edit permissions and audit tunnel configs.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Authenticated attacker can inject shell commands via tunnel host field, executing arbitrary commands on the source SSH host as the connected SSH user.
Immediate action required
- affected< 2.3.2
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.