PatchTheCVECVE-2022-35223: EasyUse MailHunter Ultimate’s cookie deserialization function has an inadequate validation vulnerability
CVE-2022-35223 is a critical-severity flaw (CVSS 9.8) affecting mailhunter ultimate. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
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.
Why this priority
- Critical severity
- Remotely exploitable, no login, no user action
A fixed release or distro patch exists.
Risk facts
| CVSS score | 9.8 (Critical) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | None |
| User interaction | None |
| EPSS exploit chance | 1.7% (top 23%) |
| CISA exploited list | No |
| Weakness | CWE-502 |
| Published | 2022-08-02 |
| Last modified | 2026-06-17 |
Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2022-35223?
mailhunter ultimate: upgrade to newer than 2020. Exact commands for each OS are on this page.
Is CVE-2022-35223 being exploited?
CVE-2022-35223 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2022-35223 affect?
CVE-2022-35223 affects mailhunter ultimate. Severity is critical (CVSS 9.8). 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 unauthentica
How urgent is CVE-2022-35223?
Priority 58/100. Critical severity; Remotely exploitable, no login, no user action
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