RCE in Dovecot

CVE-2021-33515

The submission service in Dovecot before 2.3.15 allows STARTTLS command injection in lib-smtp. Sensitive information can be redirected to an attacker-controlled address.

Vulnerability class: Command Injection (OS Command Injection)

EPSS: 0.028 (85.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.8 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2021-33515?
CVE-2021-33515 is a medium-severity vulnerability in Dovecot, classified under Command Injection. CVSS score: 4.8/10. Published 2021-06-28.
How severe is CVE-2021-33515?
Medium severity. CVSS v3 base score is 4.8 out of 10.