Name: CVE-2021-38084: Improper Neutralization of Special Elements in Output Used by a Downstream Component
Creator: Rapid7
Published: 2021-08-03T00:00:00.000Z
License: https://www.rapid7.com/legal/website-terms-of-use/
Keywords: CVE, CVE-2021-38084, CWE-74, CVSS 8.1, EPSS 0.00513

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.

CVSS Details

CVSS 3.1 Base Score: 8.1
CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H)

Covered by Rapid7

Product	Vendor Advisory	Solution File	Added	Published
Debian	—	No solution existsUpgrade courier	May 15, 2025	Aug 3, 2021

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CVSS Details

Covered by Rapid7

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