CVE-2026-21708Network attack vector

Backup Viewer code execution via SQL injection

Published Mar 12, 2026 · Updated Mar 12, 2026

SQL injection in Veeam Backup & Replication before 12.3.2 and 13.0.1 allows remote authenticated users to execute code as postgres. Veeam identifies CWE-89 but has not disclosed the affected request handler, SQL statement, or unsafely processed input. A Backup Viewer role is sufficient; successful exploitation grants database-account code execution on Windows backup servers and Linux-based software appliances.

CVSS severity9.9
Critical
EPSS probability1.09%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

SQL injection in Veeam Backup & Replication before 12.3.2 and 13.0.1 allows remote authenticated users to execute code as postgres. Veeam identifies CWE-89 but has not disclosed the affected request handler, SQL statement, or unsafely processed input. A Backup Viewer role is sufficient; successful exploitation grants database-account code execution on Windows backup servers and Linux-based software appliances.

The record

CVE
CVE-2026-21708
Published
Mar 12, 2026
Updated
Mar 12, 2026
Vendor
Veeam Software
Product
Veeam Backup & Replication
Classifications
CWE-89
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

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=12.3.2 <12.3.2
  2. 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=12.3.2 <12.3.2; version=13.0.1 <13.0.1

Published CVSS scores

9.9CISA-ADPCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L
9.9VeeamCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L

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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-89Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')

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

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo