How severe is CVE-2022-35223?

CVE-2022-35223 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2022-35223 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (67th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-35223?

CVE-2022-35223 affects Easyuse Mailhunter Ultimate. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2022-35223?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2022-35223 published?

CVE-2022-35223 was published on 2022-08-02 and last updated on 2026-06-17.

CVE-2022-35223

CVE-2022-35223 is a critical-severity vulnerability in Easyuse Mailhunter Ultimate with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-502.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 1% (67th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-502
Affected product: Easyuse Mailhunter Ultimate
Published: 2022-08-02
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is CVE-2022-35223?: 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.
How severe is CVE-2022-35223?: CVE-2022-35223 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2022-35223 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (67th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-35223?: CVE-2022-35223 affects Easyuse Mailhunter Ultimate. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2022-35223?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2022-35223 published?: CVE-2022-35223 was published on 2022-08-02 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:easyuse:mailhunter_ultimate:*:*:*:*:*:*:*:*

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