Apcupsd 0.3.91_5, as used in pfSense through 2.4.4-RELEASE-p3 and other products, has an XSS issue in apcupsd_status.php.
Conclusion & alert: CVE-2019-12584 is rated Moderate Risk (55.4/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 4.46%). 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 | 2026-05-04 | 4.63% | 4.46% | -0.17% |
| 2 | 2026-03-19 | 4.71% | 4.63% | -0.09% |
| 3 | 2025-08-16 | — | 4.71% | — |
Full EPSS history (14 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 6.1 | 3.0 | MEDIUM |
|
2.8 | 2.7 | [email protected] |
| 4.3 | 2.0 | MEDIUM |
|
8.6 | 2.9 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
unimportant | CVE-2019-12584 unimportant priority: Debian including 1 source packages (apcupsd), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2019-12584 |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| apcupsd | apcupsd | 0.3.91_5 | cpe:2.3:a:apcupsd:apcupsd:0.3.91_5:*:*:*:*:*:*:* |
| netgate | pfsense | < 2.4.4 | cpe:2.3:a:netgate:pfsense:*:*:*:*:*:*:*:* |
| netgate | pfsense | 2.4.4 | cpe:2.3:a:netgate:pfsense:2.4.4:-:*:*:*:*:*:* |
| netgate | pfsense | 2.4.4 | cpe:2.3:a:netgate:pfsense:2.4.4:p1:*:*:*:*:*:* |
| netgate | pfsense | 2.4.4 | cpe:2.3:a:netgate:pfsense:2.4.4:p2:*:*:*:*:*:* |
| netgate | pfsense | 2.4.4 | cpe:2.3:a:netgate:pfsense:2.4.4:p3:*:*:*:*:*:* |