CVE-2026-21671CRITICAL 9.1EPSS p67.3%

CVE-2026-21671CVE-2026-21671

Description

A vulnerability allowing an authenticated user with the Backup Administrator role to perform remote code execution (RCE) in high availability (HA) deployments of Veeam Backup & Replication.

Scoring

CVSS 3.19.1 (CRITICAL)
VectorCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
EPSS1.33% probability of exploitation · percentile 67.3% · 2026-06-19T12:03:05Z
Published2026-03-12
Last modified2026-05-10

Underlying weaknesses· 2

CWE-94CWE-693

References

  1. https://www.veeam.com/kb4831

2

TypeTargetConfidenceTier
WeaknessProtection Mechanism Failurecwe-6930%live
WeaknessImproper Control of Generation of Code ('Code Injection')cwe-940%live

Related by meaning· 6

Nearest entities by semantic similarity across the cs-graph corpus.

CVE
CVE-2026-21672
CVE
CVE-2026-21667
CVE
CVE-2026-21669
CVE
Veeam Backup & Replication Remote Code Execution Vulnerability
CVE
CVE-2026-21666
CVE
CVE-2025-48983
Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.