Plaintext storage of a password vulnerability exists in +F FS040U software versions v2.3.4 and earlier, which may allow an attacker to obtain the login password of +F FS040U and log in to the management console.
Conclusion & alert: CVE-2022-43442 is rated Low Risk (26/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.29%). Mandatory action: Monitor for updates and reassess as exploit intelligence or EPSS changes.
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 | 0.05% | 0.29% | +0.24% |
| 2 | 2023-03-07 | 1.02% | 0.05% | -0.97% |
| 3 | 2022-12-07 | — | 1.02% | — |
Full EPSS history (4 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 4.6 | 3.1 | MEDIUM |
|
0.9 | 3.6 | [email protected] |
| 4.6 | 3.1 | MEDIUM |
|
0.9 | 3.6 | 134c704f-9b21-4f2e-91b3-4a467353bcc0 |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| fsi | fs040u_firmware | <= 2.3.4 | cpe:2.3:o:fsi:fs040u_firmware:*:*:*:*:*:*:*:* |
| URL | Tags |
|---|---|
| https://jvn.jp/en/jp/JVN74285622/index.html | Third Party Advisory |
| https://www.fsi.co.jp/mobile/plusF/news/22102801.html | Vendor Advisory |
| https://www.fsi.co.jp/mobile/plusF/news/22102802.html | Not Applicable Vendor Advisory |
| https://www.fsi.co.jp/mobile/plusF/news/22102803.html | Not Applicable Vendor Advisory |
| https://www.fsi.co.jp/mobile/plusF/news/22102804.html | Not Applicable Vendor Advisory |