How severe is CVE-2022-37242?

CVE-2022-37242 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-2022-37242 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (65th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-37242?

CVE-2022-37242 affects Altn Security Gateway For Email Servers. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2022-37242?

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-2022-37242 published?

CVE-2022-37242 was published on 2022-08-25 and last updated on 2026-06-17.

CVE-2022-37242

CVE-2022-37242 is a critical-severity vulnerability in Altn Security Gateway For Email Servers 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-74.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 1% (65th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-74
Affected product: Altn Security Gateway For Email Servers
Published: 2022-08-25
Last modified: 2026-06-17

Description

MDaemon Technologies SecurityGateway for Email Servers 8.5.2, is vulnerable to HTTP Response splitting via the data parameter.

Frequently asked questions

What is CVE-2022-37242?: MDaemon Technologies SecurityGateway for Email Servers 8.5.2, is vulnerable to HTTP Response splitting via the data parameter.
How severe is CVE-2022-37242?: CVE-2022-37242 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-2022-37242 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (65th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-37242?: CVE-2022-37242 affects Altn Security Gateway For Email Servers. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2022-37242?: 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-2022-37242 published?: CVE-2022-37242 was published on 2022-08-25 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:altn:security_gateway_for_email_servers:8.5.2:*:*:*:*:*:*:*

More vulnerabilities in Altn Security Gateway For Email Servers

CVE-2022-37240 — Critical (CVSS 9.8): MDaemon Technologies SecurityGateway for Email Servers 8.5.2 is vulnerable to HTTP Response splitting via the format…
CVE-2022-37238 — Medium (CVSS 5.4): MDaemon Technologies SecurityGateway for Email Servers 8.5.2 is vulnerable to Cross Site Scripting (XSS) via the…
CVE-2022-37245 — Medium (CVSS 5.4): MDaemon Technologies SecurityGateway for Email Servers 8.5.2 is vulnerable to Cross Site Scripting (XSS) via the…
CVE-2022-37244 — Medium (CVSS 5.4): MDaemon Technologies SecurityGateway for Email Servers 8.5.2 is vulnerable to IFRAME Injectionvia the currentRequest…
CVE-2022-37243 — Medium (CVSS 5.4): MDaemon Technologies SecurityGateway for Email Servers 8.5.2 is vulnerable to Cross Site Scripting (XSS) via the…
CVE-2022-37241 — Medium (CVSS 5.4): MDaemon Technologies SecurityGateway for Email Servers 8.5.2 is vulnerable to Cross Site Scripting (XSS) via the…

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