What is CVE-2026-21670?

CVE-2026-21670 is a high-severity vulnerability in Veeam Backup And Replication, classified under Insufficiently Protected Credentials. CVSS score: 7.7/10. Published 2026-03-12.

How severe is CVE-2026-21670?

High severity. CVSS v3 base score is 7.7 out of 10.

Vulnerability in Veeam Backup And Replication

CVE-2026-21670

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

EPSS: 0.000 (14.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.7 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N.

Affected products

Veeam Backup And Replication — versions 13.0.1
Veeam Veeam_backup_\&_replication

Weakness classification (CWE)

CWE-522 — Insufficiently Protected Credentials

References

support@hackerone.com (Vendor Advisory)

Frequently asked questions

What is CVE-2026-21670?: CVE-2026-21670 is a high-severity vulnerability in Veeam Backup And Replication, classified under Insufficiently Protected Credentials. CVSS score: 7.7/10. Published 2026-03-12.
How severe is CVE-2026-21670?: High severity. CVSS v3 base score is 7.7 out of 10.