CVE-2026-21670Network attack vector

Saved SSH credential extraction by low-privileged users

Published Mar 12, 2026 · Updated Mar 12, 2026

Credential exposure in Veeam Backup & Replication 13.0.1.1071 and earlier allows remote authenticated users to extract saved SSH credentials. Veeam has not published the affected component or the operation that exposes stored SSH secrets. Low-privileged authenticated access to the backup server is required, and the documented consequence is disclosure of credentials used to access managed systems.

CVSS severity7.7
High
EPSS probability0.40%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Credential exposure in Veeam Backup & Replication 13.0.1.1071 and earlier allows remote authenticated users to extract saved SSH credentials. Veeam has not published the affected component or the operation that exposes stored SSH secrets. Low-privileged authenticated access to the backup server is required, and the documented consequence is disclosure of credentials used to access managed systems.

The record

CVE
CVE-2026-21670
Published
Mar 12, 2026
Updated
Mar 12, 2026
Vendor
Veeam Software
Product
Veeam Backup & Replication
Classifications
CWE-522, T1555
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 12, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 12, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=13.0.1 <13.0.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Veeam Software · Veeam Backup & Replicationversion=13.0.1 <13.0.1

Published CVSS scores

7.7VeeamCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
6.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-522Insufficiently Protected Credentials
T1555Credentials from Password Stores

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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