Vulnerability in Calix Gigaspire
CVE-2026-19745
A flaw has been found in Calix GigaSpire 26.1.0. Impacted is an unknown function of the file utilities_configurationsave.cgi of the component Web Management Interface. Executing a manipulation of the argument sessionKey can lead to denial of service. The attack can be launched remotely. The exploit has been published and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L.
EPSS exploit prediction
EPSS: 0.005 (38.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 38th percentile — 38.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.005 · change: +0.001
Affected products
- Calix Gigaspire — versions 26.1.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- vuldb.com/vuln/389483 (technical-description, vdb-entry)
- vuldb.com/vuln/389483/cti (signature, permissions-required)
- vuldb.com/cve/CVE-2026-19745 (third-party-advisory)
- vuldb.com/submit/868298 (third-party-advisory)
Frequently asked questions
- What is CVE-2026-19745?
- CVE-2026-19745 is a medium-severity vulnerability in Calix Gigaspire, classified under Improper Resource Shutdown or Release. CVSS score: 4.3/10. Published 2026-08-13.
- How severe is CVE-2026-19745?
- Medium severity. CVSS v3 base score is 4.3 out of 10.
- Is CVE-2026-19745 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.