CVE-2018-15588
MailMate before 1.11.3 mishandles a suspicious HTML/MIME structure in a signed/encrypted email.
MailMate before 1.11.3 mishandles a suspicious HTML/MIME structure in a signed/encrypted email.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- High
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
MailMate before 1.11.3 mishandles a suspicious HTML/MIME structure in a signed/encrypted email.
- Record
CVE-2018-15588- CVSS 3.0
- 7.5 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N - CVSS 2.0
- 5.0 Medium
AV:N/AC:L/Au:N/C:N/I:P/A:N - Weakness
- CWE-290
- Updated
- 2026-11-02
CVE List No score
MailMate before 1.11.3 mishandles a suspicious HTML/MIME structure in a signed/encrypted email.
- Record
CVE-2018-15588- Updated
- 2026-11-02
EUVDEUVD-2018-7462 No score
MailMate before 1.11.3 mishandles a suspicious HTML/MIME structure in a signed/encrypted email.
- Record
EUVD-2018-7462- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-j44j-72m9-g4fp
MailMate before 1.11.3 mishandles a suspicious HTML/MIME structure in a signed/encrypted email.
MailMate before 1.11.3 mishandles a suspicious HTML/MIME structure in a signed/encrypted email.
- Record
GHSA-j44j-72m9-g4fp- CVSS 3.0
- 7.5 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N - Weakness
- CWE-290
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2018-15588 is a high vulnerability (CVSS 7.5) in Freron Mailmate, published February 11, 2019. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.44%, the 84th percentile. No source names a fixed version.
References
updates.mailmate-app.com/release_notes
openwall.com/lists/oss-security/2019/04/30/4
seclists.org/fulldisclosure/2019/Apr/38
packetstormsecurity.com/files/152703/Johnny-You-Are-Fired.html
github.com/RUB-NDS/Johnny-You-Are-Fired
nvd.nist.gov/vuln/detail/CVE-2018-15588