How severe is CVE-2022-42136?

CVE-2022-42136 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2022-42136 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (55th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-42136?

CVE-2022-42136 primarily affects Mailenable. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2022-42136?

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

When was CVE-2022-42136 published?

CVE-2022-42136 was published on 2023-01-13 and last updated on 2026-06-17.

CVE-2022-42136

CVE-2022-42136 is a high-severity vulnerability in Mailenable with a CVSS 3.x base score of 8.8. 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-22.

Key facts

Severity: High (CVSS 3.x base score 8.8)
EPSS exploit prediction: 1% (55th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-22
Affected product: Mailenable
Published: 2023-01-13
Last modified: 2026-06-17

Description

Authenticated mail users, under specific circumstances, could add files with unsanitized content in public folders where the IIS user had permission to access. That action, could lead an attacker to store arbitrary code on that files and execute RCE commands.

Frequently asked questions

What is CVE-2022-42136?: Authenticated mail users, under specific circumstances, could add files with unsanitized content in public folders where the IIS user had permission to access. That action, could lead an attacker to store arbitrary code on that files and execute RCE commands.
How severe is CVE-2022-42136?: CVE-2022-42136 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2022-42136 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (55th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-42136?: CVE-2022-42136 primarily affects Mailenable. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2022-42136?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2022-42136 published?: CVE-2022-42136 was published on 2023-01-13 and last updated on 2026-06-17.

References

Affected products (4)

cpe:2.3:a:mailenable:mailenable:*:*:*:*:enterprise:*:*:*
cpe:2.3:a:mailenable:mailenable:*:*:*:*:enterprise_premium:*:*:*
cpe:2.3:a:mailenable:mailenable:*:*:*:*:professional:*:*:*
cpe:2.3:a:mailenable:mailenable:*:*:*:*:standard:*:*:*

More vulnerabilities in Mailenable

CVE-2015-9280 — Critical (CVSS 10.0): MailEnable before 8.60 allows XXE via an XML document in the request.aspx Options parameter.
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