The myMail app through 14.30 for iOS sends cleartext credentials in a situation where STARTTLS is expected by a server.

published 2023-05-07 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-36544

cvss: 7.5; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.4%; EPSS 0.4% chance of exploitation in 30 days, percentile 36%
public exploits: 0; none known

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: partial
Assessed: 21 mo ago (2025-01-29)

Exploit prediction

0.42% chance of exploitation in the next 30 days, higher than 36% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CISA ADP	3.1	7.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
NVD	3.1	7.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CNA	3.1	7.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Classification

Weakness

CWE-319 Cleartext Transmission of Sensitive Information
CWE-311 Missing Encryption of Sensitive Data

References

mailbox.org /en/post/mailbox-org-discovers-unencrypted-password-transmission-in-mymail
vendor-advisory
news.ycombinator.com /item?id=35845308
issue-tracking
apps.apple.com /fm/app/mymail-email-app-for-gmail/id722120997
product

Sources

CVE List CVE-2023-32290
NVD CVE-2023-32290

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary