CVE-2020-15917
9.8
CRITICAL
CVSS 3.1
EPSS 2.2%
Description
common/session.c in Claws Mail before 3.17.6 has a protocol violation because suffix data after STARTTLS is mishandled.
How to fix CVE-2020-15917
To remediate CVE-2020-15917, upgrade the affected package to a fixed version below.
- Debian/claws-mail—upgrade to 3.17.6-1 or later
Is CVE-2020-15917 being exploited?
Low — EPSS is 2.2%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 3.17.6-1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | CRITICAL9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |