CVE-2026-21671

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...

CVE-2026-21668

A vulnerability allowing an authenticated domain user to bypass restrictions and manipulate arbitrary files on a Backup Repository...

CVE-2026-21667

Veeam Backup & Replication CVE-2026-21667 allows an authenticated domain user to perform remote code execution on the Backup Server. Affected product: Veeam Backup & Replication (versions prior to the patched builds). Reported CVSS data shows high to critical impact (C, I, A = HIGH; initial base ...

CVE-2026-21669

A vulnerability allowing an authenticated domain user to perform remote code execution RCE on the Backup Server...

CVE-2026-21667

A vulnerability allowing an authenticated domain user to perform remote code execution RCE on the Backup Server...

CVE-2026-21666

A vulnerability allowing an authenticated domain user to perform remote code execution RCE on the Backup Server...

CVE-2026-21668

Technical details about CVE-2026-21668 are not provided in the supplied documents. Monitor for updates from Veeam (KB4830) and related advisories for affected products, impact, and remediation.

CVE-2026-21671

Veeam Backup & Replication in high availability deployments is affected by CVE-2026-21671. An authenticated user with the Backup Administrator role can perform remote code execution. CVSS v3.1 base score is 9.1 (CRITICAL) , with vector CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H; impact is HIGH ...

CVE-2026-21671

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...

CVE-2026-21668

A vulnerability allowing an authenticated domain user to bypass restrictions and manipulate arbitrary files on a Backup Repository...

CVE-2026-21669

CVE-2026-21669: An authenticated domain user can perform remote code execution on the Backup Server. The entry provides a high-severity CVSSv3.1 base score (9.9, CRITICAL) with Network attack vector, Low complexity, Privileges Required: Low, No user interaction, and all impact metrics (Confidenti...

CVE-2026-21666

CVE-2026-21666 is a vulnerability affecting Veeam Backup & Replication where an authenticated domain user can perform remote code execution on the Backup Server. Public data across multiple feeds confirms the issue stems from access-control weaknesses enabling code execution with high impact on b...

CVE-2026-21669

A vulnerability allowing an authenticated domain user to perform remote code execution RCE on the Backup Server...

Vulnerabilities fixed in Veeam Backup & Replication

Veeam has fixed vulnerabilities in Veeam Backup & Replication. The vulnerabilities allow an authenticated domain user to remotely execute code on the backup server, which can lead to unauthorized control of backup operations. This issue is present in the backup server environment and can be...

EUVD-2026-11585

An improper sanitization of the compressionalgorithm parameter in Canonical LXD allows an authenticated, unprivileged user to execute commands as the LXD daemon on the LXD server via API calls to the image and backup endpoints. This issue affected LXD from 4.12 through 6.6 and was fixed in the sn...

CVE-2026-28384

CVE-2026-28384 : Canonical LXD contains an improper sanitization of the compression_algorithm parameter, allowing an authenticated, unprivileged user to execute commands as the LXD daemon on the LXD server via API calls to the image and backup endpoints. Affected: LXD releases 4.12–6.6. Mitigatio...

CVE-2026-28384 Authenticated RCE via unsanitized compression_algorithm

An improper sanitization of the compressionalgorithm parameter in Canonical LXD allows an authenticated, unprivileged user to execute commands as the LXD daemon on the LXD server via API calls to the image and backup endpoints. This issue affected LXD from 4.12 through 6.6 and was fixed in the sn...

CVE-2026-28384 Authenticated RCE via unsanitized compression_algorithm

An improper sanitization of the compressionalgorithm parameter in Canonical LXD allows an authenticated, unprivileged user to execute commands as the LXD daemon on the LXD server via API calls to the image and backup endpoints. This issue affected LXD from 4.12 through 6.6 and was fixed in the sn...

CVE-2026-28384

An improper sanitization of the compressionalgorithm parameter in Canonical LXD allows an authenticated, unprivileged user to execute commands as the LXD daemon on the LXD server via API calls to the image and backup endpoints. This issue affected LXD from 4.12 through 6.6 and was fixed in the sn...

CVE-2026-28384

An improper sanitization of the compressionalgorithm parameter in Canonical LXD allows an authenticated, unprivileged user to execute commands as the LXD daemon on the LXD server via API calls to the image and backup endpoints. This issue affected LXD from 4.12 through 6.6 and was fixed in the sn...