CVE-2018-15588

Name: CVE-2018-15588
Creator: NVD / NIST
Published: 2019-02-11T17:29:00.317+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 2.44%

Last modified Jun 17, 2026

CVE-2018-15588 is a vulnerability of currently unknown severity. MailMate before 1.11.3 mishandles a suspicious HTML/MIME structure in a signed/encrypted email.. EPSS estimates a 2.44% chance of exploitation in the next 30 days.

Description

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

Metrics

EPSS Probability

2.44%

82.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-290

Affected Software

Vendor	Product	Versions
Freron	Mailmate	< 1.11.3

References

http://packetstormsecurity.com/files/152703/Johnny-You-Are-Fired.htmlThird Party Advisory, VDB Entry
http://seclists.org/fulldisclosure/2019/Apr/38Mailing List, Third Party Advisory
http://www.openwall.com/lists/oss-security/2019/04/30/4Mailing List, Third Party Advisory
https://github.com/RUB-NDS/Johnny-You-Are-Fired
https://github.com/RUB-NDS/Johnny-You-Are-Fired/blob/master/paper/johnny-fired.pdf
https://updates.mailmate-app.com/release_notesRelease Notes, Vendor Advisory
http://packetstormsecurity.com/files/152703/Johnny-You-Are-Fired.htmlThird Party Advisory, VDB Entry
http://seclists.org/fulldisclosure/2019/Apr/38Mailing List, Third Party Advisory
http://www.openwall.com/lists/oss-security/2019/04/30/4Mailing List, Third Party Advisory
https://github.com/RUB-NDS/Johnny-You-Are-Fired
https://github.com/RUB-NDS/Johnny-You-Are-Fired/blob/master/paper/johnny-fired.pdf
https://updates.mailmate-app.com/release_notesRelease Notes, Vendor Advisory

Timeline

Published: Feb 11, 2019
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-15588?

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

How severe is CVE-2018-15588?

Severity scoring for CVE-2018-15588 is pending analysis. The EPSS model estimates a 2.44% probability of exploitation in the next 30 days.

How do I fix CVE-2018-15588?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

How Strix Helps

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Source: NVD / NIST