CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
9.1	$0-$5k	0.00

Summaryinfo

A vulnerability classified as critical has been found in Veeam Backup and Replication up to 13.0.0. This affects an unknown part. This manipulation causes Remote Privilege Escalation. This vulnerability is handled as CVE-2026-21669. The attack can be initiated remotely. There is not any exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability has been found in Veeam Backup and Replication up to 13.0.0 and classified as critical. Affected by this vulnerability is some unknown processing. The manipulation with an unknown input leads to a remote privilege escalation vulnerability. The CWE definition for the vulnerability is CWE-94. The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

A vulnerability allowing an authenticated domain user to perform remote code execution (RCE) on the Backup Server.

It is possible to read the advisory at veeam.com. This vulnerability is known as CVE-2026-21669 since 01/02/2026. The exploitation appears to be easy. The attack can be launched remotely. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1059 according to MITRE ATT&CK.

The vulnerability scanner Nessus provides a plugin with the ID 303202 (Veeam Backup and Replication < 13.0.1.2067 Multiple Vulnerabilities (March 2026) (KB4738)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 13.0.1 eliminates this vulnerability.

The vulnerability is also documented in the databases at Tenable (303202) and CERT Bund (WID-SEC-2026-0709). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Affected

• Veeam Backup & Replication

Productinfo

Type

• Backup Software

Vendor

• Veeam

Name

• Backup and Replication

Version

• 13.0

CPE 2.3info

• 🔒
• 🔒

CPE 2.2info

• 🔒
• 🔒

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 9.4
VulDB Meta Temp Score: 9.1

VulDB Base Score: 8.8
VulDB Temp Score: 8.4
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 9.9
CNA Vector (hackerone): 🔒

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Code injection
CWE: CWE-94 / CWE-74 / CWE-707
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Nessus ID: 303202
Nessus Name: Veeam Backup and Replication < 13.0.1.2067 Multiple Vulnerabilities (March 2026) (KB4738)

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Backup and Replication 13.0.1

Timelineinfo

01/02/2026 CVE reserved
03/12/2026 +69 days Advisory disclosed
03/12/2026 +0 days VulDB entry created
03/31/2026 +19 days VulDB entry last update

Sourcesinfo

Advisory: kb4831
Status: Confirmed

CVE: CVE-2026-21669 (🔒)
GCVE (CVE): GCVE-0-2026-21669
GCVE (VulDB): GCVE-100-350671
CERT Bund: WID-SEC-2026-0709 - Veeam Backup &amp; Replication: Mehrere Schwachstellen

Entryinfo

Created: 03/12/2026 17:01
Updated: 03/31/2026 04:44
Changes: 03/12/2026 17:01 (64), 03/12/2026 18:52 (7), 03/17/2026 11:38 (1), 03/23/2026 05:12 (2), 03/31/2026 04:44 (2)
Complete: 🔍
Cache ID: 216:91C:103

Discussion

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