7.5

CVE-2018-15588: freron mailmate Authentication Bypass by Spoofing

CVSS: 7.5v3.0HighModified
Published 11-02-2019Last modified 05-08-2024
Open JSON

Vulnerability summary

CVE-2018-15588 is a high (CVSS 7.5) Authentication Bypass by Spoofing vulnerability in freron mailmate. EPSS estimates a 2.44% chance of exploitation in the next 30 days, higher than 84.1% of scored vulnerabilities.

Overall risk
30/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.5/10
010
High · v3.0 (NVD)
EPSS score
2.44%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 11-02-2019
    PublishedVulnerability first disclosed.
  2. 05-08-2024
    Last modifiedVulnerability information updated.

Description

MailMate before 1.11.3 mishandles a suspicious HTML/MIME structure in a signed/encrypted email.

CVSS metrics

2 scores · 1 source · 2 versions

EPSS trend

Probability

2.44%

Chance of exploitation in the next 30 days

Percentile

84%

Versus all other CVEs

30-day change

0.00 pp

From 2.44% on 19-09-2026

19-09-202619-10-2026
EPSS score
2.44%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Freron1 product

1 vendor · 1 product

References

6 links