CVE-2026-21672

8.8

HIGH CVSS 3.1

Veeam Backup & Replication Windows Local Privilege Escalation Vulnerability

Overview

Description

A vulnerability allowing local privilege escalation on Windows-based Veeam Backup & Replication servers.

Details

INFO

Published Date :

March 12, 2026, 5:16 p.m.

Last Modified :

March 12, 2026, 9:07 p.m.

Remotely Exploit :

No

Source :

[email protected]

Impact

Affected Products

The following products are affected by CVE-2026-21672 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID	Vendor	Product	Action
1	Veeam	veeam_backup_\&_replication

: Total Affected Vendor : 1 | Products : 1

Scoring

CVSS Scores

The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.

Score	Version	Severity	Vector	Exploitability Score	Impact Score	Source
	CVSS 3.1	HIGH				[email protected]

Solution

Apply vendor patches to address local privilege escalation.

Install available updates from the vendor.
Verify system security settings.
Limit administrative privileges.

References

References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2026-21672.

URL	Resource
https://www.veeam.com/kb4830
https://www.veeam.com/kb4831

CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-21672 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-21672 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2026-21672 vulnerability anywhere in the article.

The Cyber Express

Veeam Fixes RCE Bugs in Critical Backup & Replication Platform

An important Veeam security patch to address multiple vulnerabilities in its Backup & Replication platform that potentially allowed attackers to execute malicious code remotely, has been released. The ...