Veeam Backup and Replication up to 13.0.0 SSH Credential information disclosure

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.1$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, has been found in Veeam Backup and Replication up to 13.0.0. This issue affects some unknown processing of the component SSH Credential Handler. Performing a manipulation results in information disclosure. This vulnerability was named CVE-2026-21670. The attack may be initiated remotely. There is no available exploit. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in Veeam Backup and Replication up to 13.0.0. It has been classified as problematic. This affects an unknown functionality of the component SSH Credential Handler. The manipulation with an unknown input leads to a information disclosure vulnerability. CWE is classifying the issue as CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. This is going to have an impact on confidentiality. The summary by CVE is:

A vulnerability allowing a low-privileged user to extract saved SSH credentials.

The advisory is shared at veeam.com. This vulnerability is uniquely identified as CVE-2026-21670 since 01/02/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1592 for this issue.

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). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Affected

  • Veeam Backup & Replication

Productinfo

Type

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.2
VulDB Meta Temp Score: 6.1

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 6.5
NVD Vector: 🔒

CNA Base Score: 7.7
CNA Vector (hackerone): 🔒

CVSSv2info

AVACAuCIA
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💳💳💳💳💳💳
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Information disclosure
CWE: CWE-200 / CWE-284 / CWE-266
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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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-2026-21670 (🔒)
GCVE (CVE): GCVE-0-2026-21670
GCVE (VulDB): GCVE-100-350673
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 (66), 03/12/2026 22:49 (7), 03/17/2026 11:38 (1), 03/23/2026 05:27 (2), 03/31/2026 04:44 (11)
Complete: 🔍
Cache ID: 216:672:103

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