CVE-2026-22542

CRITICAL

DENIAL OF SERVICE FOR CONCURRENT CONNECTIONS ON TELNET

Title source: CVE List
STIX 2.1 vulnerability

Record summary

CVE-2026-22542 has a selected CVSS score of 9.2 (critical).

Description

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.

Description source: CVE List

Exploitation context

CISA SSVC decision

ExploitationNone
AutomatableYes
Technical impactPartial

CISA Coordinator · SSVC 2.0.3 · Evaluated Jan 7, 2026 · Source: CVE List

Affected products and versions

1
ProductSourceVersion range

QC 60/90/120

Browse EFACEC / QC 60/90/120

Default status: unaffected

CVE List8affected

References

2