Backup Viewer RCE Exposes postgres User Privileges
CVE-2026-21708 Published on March 12, 2026

A vulnerability allowing a Backup Viewer to perform remote code execution (RCE) as the postgres user.

NVD

Vulnerability Analysis

CVE-2026-21708 is exploitable with network access, and requires small amount of user privileges. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have a high impact on confidentiality and integrity, and a small impact on availability.

Attack Vector:
NETWORK
Attack Complexity:
LOW
Privileges Required:
LOW
User Interaction:
NONE
Scope:
CHANGED
Confidentiality Impact:
HIGH
Integrity Impact:
HIGH
Availability Impact:
LOW

Weakness Type

What is a SQL Injection Vulnerability?

The software constructs all or part of an SQL command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended SQL command when it is sent to a downstream component.

CVE-2026-21708 has been classified to as a SQL Injection vulnerability or weakness.


Affected Versions

Veeam Backup and Replication:

Exploit Probability

EPSS
1.52%
Percentile
81.48%

EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.