CVE-2026-19746 (GCVE-0-2026-19746)
Vulnerability from cvelistv5 – Published: 2026-08-13 19:15 – Updated: 2026-10-16 06:04 Disputed
VLAI
EPSS
VEX
Title
Calix GigaSpire traceroute.cmd denial of service
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."
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-13 19:25 UTC
CWE
- CWE-404 - Denial of Service
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/389484 | vdb-entry |
| https://vuldb.com/vuln/389484/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-19746 | third-party-advisory |
| https://vuldb.com/submit/868299 | third-party-advisory |
Impacted products
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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
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