CVE-2020-25694: Debian Linux

High severity, CVSS 8.1. EPSS: 1.6% chance of exploitation in the next 30 days.

A flaw was found in PostgreSQL versions before 13.1, before 12.5, before 11.10, before 10.15, before 9.6.20 and before 9.5.24. If a client application that creates additional database connections only reuses the basic connection parameters while dropping security-relevant parameters, an opportunity for a man-in-the-middle attack, or the ability to observe clear-text transmissions, could exist. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

Affected products

• Debian Debian Linux: version 9.0 only
• PostgreSQL PostgreSQL: before 9.5.24 (fixed in 9.5.24); from 9.6.0, before 9.6.20 (fixed in 9.6.20); from 10.0, before 10.15 (fixed in 10.15); from 11.0, before 11.10 (fixed in 11.10); from 12.0, before 12.5 (fixed in 12.5); from 13.0, before 13.1 (fixed in 13.1)

Published 2020-11-16. Last modified 2026-06-17.