VULNERABILITY INTELLIGENCE

CVE-2021-37845

CVSS score3.7 LOW
EPSS probability0.66%
CISA KEVNot currently listed
Published2023-05-29
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N

Description

An issue was discovered in Citadel through webcit-932. A meddler-in-the-middle attacker can fixate their own session during the cleartext phase before a STARTTLS command (a violation of "The STARTTLS command is only valid in non-authenticated state." in RFC2595). This potentially allows an attacker to cause a victim's e-mail messages to be stored into an attacker's IMAP mailbox, but depends on details of the victim's client behavior.

Weakness classification

  • nvd@nist.gov: NVD-CWE-noinfo

Primary references