CVE-2026-21708

Published Mar 12, 2026 CVSS 3.1 · 9.9 Critical EPSS 1.4% KEV · Not listed
Description
A vulnerability allowing a Backup Viewer to perform remote code execution (RCE) as the postgres user.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Veeam veeam Backup \& Replication
CPEs cpe:2.3:a:veeam:veeam_backup_\&_replication:*:*:*:*:*:*:*:*
Vendors & Products Veeam veeam Backup \& Replication
Type Values Removed Values Added
Title Remote Code Execution via Backup Viewer in Veeam:Backup and Replication
Type Values Removed Values Added
Metrics cvssV3_1

{'score': 9.9, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L'}

Type Values Removed Values Added
Title Remote Code Execution via Backup Viewer in Veeam:Backup and Replication
Type Values Removed Values Added
Title Veeam Backup Viewer RCE via Postgres User
Weaknesses CWE-20
CWE-94
Type Values Removed Values Added
Metrics cvssV3_1

{'score': 9.9, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H'}

Type Values Removed Values Added
Weaknesses CWE-89
Metrics cvssV3_1

{'score': 10, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H'}

cvssV3_1

{'score': 9.9, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H'}

Type Values Removed Values Added
Title Veeam Backup Viewer RCE via Postgres User
Weaknesses CWE-20
CWE-94
Type Values Removed Values Added
Title Remote Code Execution via Veeam Backup Viewer as Postgres User
Weaknesses CWE-94
Type Values Removed Values Added
Title Remote Code Execution via Veeam Backup Viewer as Postgres User
Weaknesses CWE-94
Type Values Removed Values Added
Title Remote Code Execution via Veeam Backup Viewer as Postgres User
Weaknesses CWE-269
CWE-94
Type Values Removed Values Added
Title Remote Code Execution via Veeam Backup Viewer as Postgres User
Weaknesses CWE-269
CWE-94
Type Values Removed Values Added
Title Remote Code Execution via Backup Viewer in Veeam Backup and Recovery
Weaknesses CWE-94
Type Values Removed Values Added
Title Remote Code Execution via Backup Viewer in Veeam Backup and Recovery
Weaknesses CWE-94
Type Values Removed Values Added
Title Remote Code Execution via Backup Viewer in Veeam Backup & Recovery
Weaknesses CWE-78
Type Values Removed Values Added
Title Remote Code Execution via Backup Viewer in Veeam Backup & Recovery
Weaknesses CWE-78
Type Values Removed Values Added
Title Remote Code Execution via Backup Viewer in Veeam Backup & Recovery
Weaknesses CWE-20
CWE-269
Type Values Removed Values Added
Title Remote Code Execution via Backup Viewer in Veeam Backup & Recovery
Weaknesses CWE-20
CWE-269
Type Values Removed Values Added
First Time appeared Veeam
Veeam backup And Recovery
Vendors & Products Veeam
Veeam backup And Recovery
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description A vulnerability allowing a Backup Viewer to perform remote code execution (RCE) as the postgres user.
References
Metrics cvssV3_1

{'score': 10, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
hackerone
Published
Updated
May 10, 2026, 12:51 PM
Reserved
Jan 4, 2026, 3:00 PM
Status
Analyzed
Published
Mar 12, 2026, 5:16 PM
Modified
Jun 17, 2026, 10:18 AM