CVE-2020-37248

MEDIUM EPSS 8.3%
Published Jun 8, 20263w ago · Modified Jun 17, 20262w ago
6.5 CVSS 3.1
Medium
Find Similar
Published Jun 8, 2026 3w ago
Last Modified Jun 17, 2026 2w ago

Description

OfflineIMAP before 8.0.3 trusts the server with their STARTTLS capability prior to authentication, which allows STRIPTLS/man-in-the-middle attacks, taking over the connection and extracting account credentials in cleartext.

CVSS Details

Base Score
6.5
Exploitability
2.2
Impact
4.2
Vector string
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N
Attack Vector Network
Attack Complexity High
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality High
Integrity Low
Availability None

Threat Intelligence

EPSS Exploit Probability
8.3% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-348

References 5

  • openwall.com http://www.openwall.com/lists/oss-security/2026/06/08/3
  • github.com https://github.com/OfflineIMAP/offlineimap/issues/669
  • github.com https://github.com/OfflineIMAP/offlineimap3/commit/46505c53ef995455d66c685f9ec3ff6ea93dbb74
  • github.com https://github.com/OfflineIMAP/offlineimap3/issues/222
  • pypi.org https://pypi.org/project/offlineimap/#history

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.