CVE-2021-38084
8.1
HIGH
CVSS 3.1
EPSS 0.51%
Description
An issue was discovered in the POP3 component of Courier Mail Server before 1.1.5. Meddler-in-the-middle attackers can pipeline commands after the POP3 STLS command, injecting plaintext commands into an encrypted user session.
How to fix CVE-2021-38084
No fixed version has been published yet. Mitigate by removing the affected package or applying upstream guidance from the references below.
- Debian/courier—no fix listed
Is CVE-2021-38084 being exploited?
Low — EPSS is 0.5%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH8.1 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H |