Vulnerability Database

310,057

Total vulnerabilities in the database

CVE-2021-31988

A user controlled parameter related to SMTP test functionality is not correctly validated making it possible to add the Carriage Return and Line Feed (CRLF) control characters and include arbitrary SMTP headers in the generated test email.

  • Published: Oct 5, 2021
  • Updated: Nov 16, 2025
  • CVE: CVE-2021-31988
  • Severity: High
  • Exploit:

CVSS v3:

  • Severity: High
  • Score: 8.8
  • AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CVSS v2:

  • Severity: Medium
  • Score: 6.8
  • AV:N/AC:M/Au:N/C:P/I:P/A:P

CWEs:

Software From Fixed in
axis / axis_os_2020 - 9.80.3.5
axis / axis_os_2018 - 8.40.4.3
axis / axis_os_2016 - 6.50.5.5
axis / axis_os - 10.7