AUGUST 5, 2026
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Case File

CVE-2021-31988

HIGH · CVSS 8.8 EPSS 0.95%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2021-10-05 · Last synced 2026-08-04

CyberRota Analysis

This is a high severity vulnerability with a CVSS score of 8.8. See the original NVD description below for full technical details.

CVE
CVE-2021-31988
Severity
HIGH
CVSS
8.8
EPSS
0.95%

Original NVD Description

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.

Related CVEs

Other vulnerabilities affecting the same vendor(s)