On Franklin Fueling Systems TS-550 evo 2.3.0.7332 devices, the Guest user, which contains the lowest privileges, can post to the idSourceFileName parameter found within the /download directory. This ability allows for an attacker to download sensitive system files from the host machine such as databases which contain information that can aid in further attacks.
Conclusion & alert: CVE-2017-6564 is rated Moderate Risk (44.9/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 0.81%). Mandatory action: Review affected assets and schedule remediation.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-06-15 | 0.18% | 0.81% | +0.64% |
| 2 | 2025-03-30 | 0.35% | 0.18% | -0.17% |
| 3 | 2025-03-29 | — | 0.35% | — |
Full EPSS history (7 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 6.5 | 3.0 | MEDIUM |
|
2.8 | 3.6 | [email protected] |
| 4.0 | 2.0 | MEDIUM |
|
8.0 | 2.9 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| franklinfueling | ts-550_evo_firmware | 2.3.0.7332 | cpe:2.3:o:franklinfueling:ts-550_evo_firmware:2.3.0.7332:*:*:*:*:*:*:* |
| URL | Tags |
|---|---|
| http://www.u235.io/single-post/2017/05/01/Penetrating-Fuel-Management-Systems | Technical Description Third Party Advisory URL Repurposed |
| https://gist.github.com/Stick-U235/b187931f828e92866d09b9bdeb956ca2 | Third Party Advisory |