PT-2026-24953 · Veeam · Veeam Backup & Replication

Published 2026-03-12 · Updated 2026-03-14 · CVE-2026-21667

Positive Technologies (AI Summary)

CVSS v3.1

9.9

Critical

Base vector

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

Name of the Vulnerable Software and Affected Versions Veeam Backup and Replication (affected versions not specified)

Description This issue allows an authenticated domain user to perform remote code execution (RCE) on the Backup Server. The vulnerability enables an attacker to execute arbitrary code on the affected system.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

RCE

Improper Access Control

Weakness Enumeration

CWE-284

Related Identifiers

BDU:2026-05181

CVE-2026-21667

Affected Products

Veeam Backup & Replication

References · 14

• https://bdu.fstec.ru/vul/2026-05181 · Security Note
• https://veeam.com/kb4830 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-21667 · Security Note
• https://reddit.com/r/SecOpsDaily/comments/1rsfcxj/veeam_patches_7_critical_backup_replication_flaws · Reddit Post
• https://twitter.com/TweetThreatNews/status/2032466733341057050 · Twitter Post
• https://twitter.com/ptdbugs/status/2032383445205143802 · Twitter Post
• https://twitter.com/johndjohnson/status/2032812264613621777 · Twitter Post
• https://twitter.com/TheHackerWire/status/2032123487595479289 · Twitter Post
• https://t.me/true_secator/7993 · Telegram Post
• https://reddit.com/r/pwnhub/comments/1rstnim/veeam_alerts_critical_rce_flaws_in_backup · Reddit Post
• https://reddit.com/r/KibernetinisSaugumas/comments/1rsmzj1/atsargin%C4%97s_kopijos_pavojuje_veeam_software · Reddit Post
• https://twitter.com/CveFindCom/status/2032120239198994453 · Twitter Post
• https://twitter.com/securityRSS/status/2032495259511386579 · Twitter Post
• https://twitter.com/CVEnew/status/2032410959592235457 · Twitter Post