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Critical 9.2Published Jan 7, 2026
CVE-2026-22542DENIAL OF SERVICE FOR CONCURRENT CONNECTIONS ON TELNET
Updated under an hour ago ()
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It affects EFACEC QC 60/90/120. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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An attacker with access to the system's internal network can cause a denial of service on the system by making two concurrent connections through the Telnet service.
- CVSS
- 9.2 CRITICAL (v4.0, CNA)CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H
- Weakness (CWE)
- CWE-400
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- S21sec
- NVD analysis
- Deferred
- Record last updated
- Jan 7, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.