CVE-2025-7635
Last modified
CVE-2025-7635 is a high-severity vulnerability rated 7.7/10 on the CVSS scale. Unauthenticated Telnet access vulnerability in Calix GigaCenter ONT allows root access.This issue affects GigaCenter ONT: 844E, 844G, 844GE, 854GE.. EPSS estimates a 0.27% chance of exploitation in the next 30 days.
Description
Unauthenticated Telnet access vulnerability in Calix GigaCenter ONT allows root access.This issue affects GigaCenter ONT: 844E, 844G, 844GE, 854GE.
Metrics
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Calix | Calix Gigacenter Ont | All versions |
| Calix | Calix Gigacenter Ont | 844e |
| Calix | Calix Gigacenter Ont | 844g |
| Calix | Calix Gigacenter Ont | 844ge |
| Calix | Calix Gigacenter Ont | 854ge |
References
- https://fluidattacks.com/advisories/salExploit, Mitigation, Third Party Advisory
- https://revers3everything.com/calix-case-five-0-days-five-cves/Third Party Advisory
- https://www.calix.comProduct
- https://fluidattacks.com/advisories/salExploit, Mitigation, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
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