DENIAL OF SERVICE FOR CONCURRENT CONNECTIONS ON TELNET
Priority MEDIUM 46CWE-400Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-400.
Summary
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.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00365 30th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-22542
- 2026-10-03 Alias added: GHSA-gqqp-9725-vwp7
References
More EFACEC vulnerabilities
- TI-2026-18110 DENIAL OF SERVICE VIA ARP PACKETS CVSS 4.0CRITICAL 9.2
- TI-2026-18114 EXCHANGE OF CREDENTIALS IN CLEAR TEXT CVSS 4.0HIGH 8.7
- TI-2023-27653 Uncontrolled Resource Consumption in EFACEC BCU 500 CVSS 3.1CRITICAL 9.6
- TI-2026-18111 DENIAL OF SERVICE VIA ICMP PACKETS CVSS 4.0HIGH 8.2
- TI-2026-18106 FRAIL SECURITY IN MQTT PROTOCOL ALLOWS AN ATTACKER MODIFY CRITICAL PARAMETERS CVSS 4.0HIGH 8.9
- TI-2026-18107 PRIVILEGE ESCALATION VIA SUDO COMMAND CVSS 4.0HIGH 8.6
Sources
- CVE-2026-22542 · CVE Program
- CVE-2026-22542 · NVD
- FIRST EPSS
- GHSA-gqqp-9725-vwp7 · GitHub Advisory Database · CC BY 4.0
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