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CVE-2020-12714

16
FAUCET Score

CVE-2020-12714 describes a vulnerability in CipherMail Community Gateway, Professional/Enterprise Gateway, and Webmail Messenger Virtual Appliances (versions 1.0.1-4.7.1-0 and 1.1.1-3.1.1-0 respectively). The issue stems from the use of an insufficiently sized Diffie-Hellman parameter, which could enable a man-in-the-middle attack to compromise communications between CipherMail products and external SMTP clients. Rated as Medium severity (CVSS 5.9), this vulnerability has a network attack vector and high attack complexity, potentially leading to high confidentiality impact without affecting integrity or availability. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage regarding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= 1.0.1, <= 4.7.1-0CPE matchmatch criteria
cpe:2.3:a:ciphermail:gateway:*:*:*:*:*:*:*:*
>= 1.1.1, <= 3.1.1-0CPE matchmatch criteria
cpe:2.3:a:ciphermail:webmail_messenger:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.9MEDIUM

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
2.2
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.97%
Probability of exploitation in next 30 days
EPSS Percentile
58.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0097 is in the 17th percentile among its peer group of 19,958 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

packetstormsecurity.com / files/158001/CipherMail-Community-Virtual-Appliance-4.6.2-Code-Execution.html
ExploitThird Party AdvisoryVDB Entry
ciphermail.com / blog/ciphermail-cve-2020-12713_2020-12714.html
PatchVendor Advisory
ciphermail.com / gateway.html
ProductVendor Advisory
ciphermail.com / news.html
Release NotesVendor Advisory
ciphermail.com / secure-webmail.html
ProductVendor Advisory
coresecurity.com / core-labs/advisories/ciphermail-multiple-vulnerabilities
ExploitThird Party Advisory