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Case File

CVE-2020-15953

HIGH · CVSS 7.4 EPSS 2.41% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2020-07-27 · Last synced 2026-08-04

CyberRota Analysis

This is a high severity vulnerability with a CVSS score of 7.4. Public exploit code or proof-of-concept references have been detected in its references.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

GitHub PoC Links

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2020-15953
Severity
HIGH
CVSS
7.4
EPSS
2.41%

Original NVD Description

LibEtPan through 1.9.4, as used in MailCore 2 through 0.6.3 and other products, has a STARTTLS buffering issue that affects IMAP, SMTP, and POP3. When a server sends a "begin TLS" response, the client reads additional data (e.g., from a meddler-in-the-middle attacker) and evaluates it in a TLS context, aka "response injection."

Related CVEs

Other vulnerabilities affecting the same vendor(s)