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TI-2026-16012 Aliases CVE-2026-19746GHSA-6w9r-x9gv-7c46

Calix GigaSpire traceroute.cmd denial of service

Priority LOW 24CWE-404Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · Low
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-404.

Summary

A vulnerability has been found in Calix GigaSpire 26.1.0. The affected element is an unknown function of the file traceroute.cmd. The manipulation leads to denial of service. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used. The presence of this vulnerability remains uncertain at this time. The vendor explains: "After reviewing the researcher's videos, we repeated the test using his described setup: the traceroute cancel request was sent while a second client was connected to the EWI. The second client remained connected and was not interrupted, and we did not observe a forced logout, session invalidation, or loss of EWI availability."

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00471 40th 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
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
CalixGigaSpire26.1.0—No fix listedCNA
  • GigaSpire VendorCalix Affected 26.1.0 Fixed in — No fix listed CNA

CPE names CNA · 1

CPEVersionsRoleVendor
cpe:2.3:a:calix:gigaspire:*:*:*:*:*:*:*:*——Calix
  • cpe:2.3:a:calix:gigaspire:*:*:*:*:*:*:*:* Versions — — ·Calix

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-19746
  2. 2026-10-03 Alias added: GHSA-6w9r-x9gv-7c46

References

—

  • TI-2025-06969 Calix GigaCenter ONT - Unauthenticated Telnet CVSS 4.0HIGH 8.7
  • TI-2025-33927 Calix Gigacenter ONT - Command Injection CVSS 4.0HIGH 8.5
  • TI-2025-33926 Calix GigaCenter ONT firmware - Sensitive Information Disclosure CVSS 4.0MEDIUM 5.1
  • TI-2025-33785 Calix GigaCenter ONT (Broadcom SoC) - Excessive Privileges CVSS 4.0HIGH 7.0
  • TI-2025-33784 Calix GigaCenter ONT (Quantenna SoC) - Excessive Privileges CVSS 4.0HIGH 7.0
  • TI-2026-16011 Calix GigaSpire Web Management utilities_configurationsave.cgi denial of service CVSS 4.0MEDIUM 5.3

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences