Is CVE-2020-37248 in the CISA KEV catalog?

No. CVE-2020-37248 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2020-37248?

CVE-2020-37248 has a CVSS v3 base score of 6.5 (MEDIUM).

What is the EPSS score for CVE-2020-37248?

CVE-2020-37248 has an EPSS score of 0.19% (8th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2020-37248?

Upgrade offlineimap3 on debian unstable to 8.0.3+dfsg-1 or later.

CVE & CISA-KEV Catalog

CVE-2020-37248

MEDIUM

6.5

CVSS v3

NVD

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.

CWE-348

How to fix

Remediation Available

offlineimap3Debian

Fixed in:8.0.3+dfsg-1CVE-2020-37248

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityHigh

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityLow

AvailabilityNone

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N

Exploit Intelligence

0.19%probability of exploitation in 30 days

8thpercentile

Low risk: more likely to be exploited than 8% of all known CVEs.

References

Other references5

Embed a live status badge for CVE-2020-37248

Markdown

[![CVE-2020-37248](https://tridentstack.com/cve/badge/CVE-2020-37248.svg)](https://tridentstack.com/cve/CVE-2020-37248)

HTML

<a href="https://tridentstack.com/cve/CVE-2020-37248"><img src="https://tridentstack.com/cve/badge/CVE-2020-37248.svg" alt="CVE-2020-37248"></a>

Find and fix vulnerabilities across your fleet

TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.

Start free

This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-06-09.