How severe is CVE-2020-12714?

CVE-2020-12714 has a CVSS 3.x base score of 5.9, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2020-12714 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (58th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-12714?

CVE-2020-12714 primarily affects Ciphermail Gateway. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2020-12714?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2020-12714 published?

CVE-2020-12714 was published on 2020-06-11 and last updated on 2026-06-17.

CVE-2020-12714

CVE-2020-12714 is a medium-severity vulnerability in Ciphermail Gateway with a CVSS 3.x base score of 5.9. 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-326.

Key facts

Severity: Medium (CVSS 3.x base score 5.9)
CVSS v2: 4.3
EPSS exploit prediction: 1% (58th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-326
Affected product: Ciphermail Gateway
Published: 2020-06-11
Last modified: 2026-06-17

Description

An issue was discovered in CipherMail Community Gateway Virtual Appliances and Professional/Enterprise Gateway Virtual Appliances versions 1.0.1 through 4.7.1-0 and CipherMail Webmail Messenger Virtual Appliances 1.1.1 through 3.1.1-0. A Diffie-Hellman parameter of insufficient size could allow man-in-the-middle compromise of communications between CipherMail products and external SMTP clients.

Frequently asked questions

What is CVE-2020-12714?: An issue was discovered in CipherMail Community Gateway Virtual Appliances and Professional/Enterprise Gateway Virtual Appliances versions 1.0.1 through 4.7.1-0 and CipherMail Webmail Messenger Virtual Appliances 1.1.1 through 3.1.1-0. A Diffie-Hellman parameter of insufficient size could allow man-in-the-middle compromise of communications between CipherMail products and external SMTP clients.
How severe is CVE-2020-12714?: CVE-2020-12714 has a CVSS 3.x base score of 5.9, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2020-12714 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (58th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-12714?: CVE-2020-12714 primarily affects Ciphermail Gateway. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2020-12714?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-12714 published?: CVE-2020-12714 was published on 2020-06-11 and last updated on 2026-06-17.

References

Affected products (2)

cpe:2.3:a:ciphermail:gateway:*:*:*:*:*:*:*:*
cpe:2.3:a:ciphermail:webmail_messenger:*:*:*:*:*:*:*:*

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