Proself Enterprise/Standard Edition Ver5.61 and earlier, Proself Gateway Edition Ver1.62 and earlier, and Proself Mail Sanitize Edition Ver1.07 and earlier allow a remote authenticated attacker with an administrative privilege to execute arbitrary OS commands.
Conclusion & alert: CVE-2023-39416 is rated Moderate Risk (54.8/100): CVSS High severity, with medium exploitation likelihood (EPSS 0.77%). 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 | 2026-05-13 | 0.56% | 0.77% | +0.21% |
| 2 | 2025-11-21 | 1.09% | 0.56% | -0.53% |
| 3 | 2025-11-18 | — | 1.09% | — |
Full EPSS history (10 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 7.2 | 3.1 | HIGH |
|
1.2 | 5.9 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| northgrid | proself | <= 1.07 | cpe:2.3:a:northgrid:proself:*:*:*:*:mail_sanitize:*:*:* |
| northgrid | proself | <= 1.62 | cpe:2.3:a:northgrid:proself:*:*:*:*:gateway:*:*:* |
| northgrid | proself | <= 5.61 | cpe:2.3:a:northgrid:proself:*:*:*:*:enterprise:*:*:* |
| northgrid | proself | <= 5.61 | cpe:2.3:a:northgrid:proself:*:*:*:*:standard:*:*:* |
| URL | Tags |
|---|---|
| https://jvn.jp/en/jp/JVN19661362/ | Third Party Advisory |
| https://www.proself.jp/information/149/ | Vendor Advisory |
| https://www.proself.jp/information/150/ | Vendor Advisory |