CVE-2026-19746: Denial of Service in Calix GigaSpire
CVE-2026-19746 is a medium severity denial of service vulnerability in Calix GigaSpire version 26.1.0. The issue is triggered by manipulating an unknown function in the traceroute.cmd file, potentially allowing a remote attacker to cause a denial of service. The vulnerability has been publicly disclosed, but the vendor has not responded or provided a fix. No patch or official remediation is currently available.
AI Analysis
Technical Summary
This vulnerability affects Calix GigaSpire version 26.1.0 and involves an unknown function within the traceroute.cmd file. Remote manipulation of this function can lead to denial of service conditions. The vulnerability was disclosed publicly, and the vendor was contacted but did not respond or issue a patch. The CVSS 4.0 base score is 5.3 (medium severity), indicating a network attack vector with low complexity and no required privileges or user interaction.
Potential Impact
Successful exploitation results in denial of service, disrupting the availability of the affected Calix GigaSpire device. There is no indication of privilege escalation, data confidentiality, or integrity impact. The vulnerability can be triggered remotely without authentication.
Mitigation Recommendations
No official patch or remediation has been provided by the vendor. Since the vendor did not respond to the disclosure, users should monitor vendor communications for updates. Until a fix is available, consider limiting network exposure of the affected device and applying network-level protections to reduce attack surface.
CVE-2026-19746: Denial of Service in Calix GigaSpire
Description
CVE-2026-19746 is a medium severity denial of service vulnerability in Calix GigaSpire version 26.1.0. The issue is triggered by manipulating an unknown function in the traceroute.cmd file, potentially allowing a remote attacker to cause a denial of service. The vulnerability has been publicly disclosed, but the vendor has not responded or provided a fix. No patch or official remediation is currently available.
CVSS v4.0
Score 5.3medium
Affected software
cpe:2.3:a:calix:gigaspire:*:*:*:*:*:*:*:*AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability affects Calix GigaSpire version 26.1.0 and involves an unknown function within the traceroute.cmd file. Remote manipulation of this function can lead to denial of service conditions. The vulnerability was disclosed publicly, and the vendor was contacted but did not respond or issue a patch. The CVSS 4.0 base score is 5.3 (medium severity), indicating a network attack vector with low complexity and no required privileges or user interaction.
Potential Impact
Successful exploitation results in denial of service, disrupting the availability of the affected Calix GigaSpire device. There is no indication of privilege escalation, data confidentiality, or integrity impact. The vulnerability can be triggered remotely without authentication.
Mitigation Recommendations
No official patch or remediation has been provided by the vendor. Since the vendor did not respond to the disclosure, users should monitor vendor communications for updates. Until a fix is available, consider limiting network exposure of the affected device and applying network-level protections to reduce attack surface.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulDB
- Date Reserved
- 2026-08-13T14:25:14.108Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a7e1a7fbf8831d539b180cc
Added to database: 08/13/2026, 19:26:55 UTC
Last enriched: 08/13/2026, 20:13:15 UTC
Last updated: 08/13/2026, 23:01:10 UTC
Views: 2
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.