EasyUse MailHunter Ultimate’s cookie deserialization function has an inadequate validation vulnerability. Deserializing a cookie containing malicious payload will trigger this insecure deserialization vulnerability, allowing an unauthenticated remote attacker to execute arbitrary code, manipulate system command or interrupt service.
Conclusion & alert: CVE-2022-35223 is rated Moderate Risk (59.2/100): CVSS Critical severity, with medium exploitation likelihood (EPSS 1.26%). 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 | 4.28% | 1.26% | -3.01% |
| 2 | 2026-05-06 | 3.45% | 4.28% | +0.83% |
| 3 | 2025-11-21 | — | 3.45% | — |
Full EPSS history (22 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 9.8 | 3.1 | CRITICAL |
|
3.9 | 5.9 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| easyuse | mailhunter_ultimate | <= 2020 | cpe:2.3:a:easyuse:mailhunter_ultimate:*:*:*:*:*:*:*:* |
| URL | Tags |
|---|---|
| https://www.chtsecurity.com/news/a381467e-74ff-4a8c-a4d3-fc86720f5400 | Third Party Advisory |
| https://www.twcert.org.tw/tw/cp-132-6365-b056c-1.html | Third Party Advisory |