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Vulnerability record · CVE-2026-21708 · published 12 March 2026

CVE-2026-21708: Veeam backup \& replication sql injection vulnerability

Veeam · Veeam Backup \& Replication

A vulnerability allowing a Backup Viewer to perform remote code execution (RCE) as the postgres user.

9.9 CVSS 3.1 Critical EPSS 1.1% · top 35.9% CWE-89 · SQL injection
9.9CVSS 3.1 base score
1.1%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

Description

A vulnerability allowing a Backup Viewer to perform remote code execution (RCE) as the postgres user.

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://www.veeam.com/kb4830 Vendor Advisory
https://www.veeam.com/kb4831 Vendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2024-40711Veeam Backup & Replication deserialization flaw allows unauthenticated RCEVeeam Backup & Replication contains a deserialization of untrusted data vulnerability (CWE-502) that permits an unauthenticated attacker to execute a…KEVEPSS 90%analysed9.8CVE-2022-26501Veeam Backup & Replication missing authentication allows remote code executionVeeam Backup & Replication 10.x and 11.x contains an incorrect access control flaw (CWE-306, missing authentication for a critical function). A remot…KEVEPSS 4.1%analysed8.8CVE-2022-26500Veeam Backup & Replication path traversal leads to remote code executionVeeam Backup & Replication 9.5U3, 9.5U4, 10.x and 11.x fail to properly limit path names, letting an authenticated remote user reach internal API fun…KEVEPSS 5.8%analysed7.5CVE-2023-27532Veeam Backup & Replication missing authentication exposes stored credentialsVeeam Backup & Replication contains a missing authentication flaw in a critical function that allows encrypted credentials stored in the configuratio…KEVEPSS 81%analysed9.9CVE-2026-21669Veeam backup \& replication code injection vulnerabilityA vulnerability allowing an authenticated domain user to perform remote code execution (RCE) on the Backup Server.EPSS 1.2%9.9CVE-2025-48983Veeam backup \& replication improper access control vulnerabilityA vulnerability in the Mount service of Veeam Backup & Replication, which allows for remote code execution (RCE) on the Backup infrastructure hosts b…EPSS 0.82%9.8CVE-2025-55125Veeam backup \& replication command injection vulnerabilityThis vulnerability allows a Backup or Tape Operator to perform remote code execution (RCE) as root by creating a malicious backup configuration file.EPSS 0.88%9.8CVE-2024-29849Veeam backup \& replication improper authentication vulnerabilityVeeam Backup Enterprise Manager allows unauthenticated users to log in as any user to enterprise manager web interface.EPSS 38%

Source: NIST National Vulnerability Database (record CVE-2026-21708), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.