SEPTEMBER 22, 2026
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Case File

CVE-2026-4873

MEDIUM · CVSS 5.9 EPSS 0.33%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2026-05-13 · Last synced 2026-08-04

CyberRota Analysis

This is a medium severity vulnerability with a CVSS score of 5.9. See the original NVD description below for full technical details.

CVE
CVE-2026-4873
Severity
MEDIUM
CVSS
5.9
EPSS
0.33%

Original NVD Description

A vulnerability exists where a connection requiring TLS incorrectly reuses an existing unencrypted connection from the same connection pool. If an initial transfer is made in clear-text (via IMAP, SMTP, or POP3), a subsequent request to that same host bypasses the TLS requirement and instead transmit data unencrypted.

Related CVEs

Other vulnerabilities affecting the same vendor(s)