Unstructured Data Backup from Google Cloud Storage fails with a Bad Request error

Challenge An Unstructured Data Backup of data from Google Cloud Storage added to Veeam Backup & Replication as an S3-Compatible Object Storage data source fails with the following error: Failed to perform object backup Error: Agent: Failed to process method NasMaster.ExecuteBackupProcessor: Faile...

CVE-2025-10304

The Everest Backup – WordPress Cloud Backup, Migration, Restore & Cloning Plugin plugin for WordPress is vulnerable to unauthorized access due to a missing capability check on the processstatusunlink function in all versions up to, and including, 2.3.8. This makes it possible for unauthenticated...

CVE-2025-10304

CVE-2025-10304 concerns the Everest Backup – WordPress Cloud Backup, Migration, Restore & Cloning Plugin. Wordfence’s vulnerability detail confirms a missing capability check on process_status_unlink() across all versions up to 2.3.8, enabling unauthenticated attackers to delete backup progress f...

"Mailbox is not fully configured" Error During Exchange Backup

Challenge A backup job may fail when processing Archive Mailbox objects with the following error: Processing archive mailbox: [email protected] failed with error: Mailbox is not fully configured. Solution This issue was resolved in Veeam Backup for Microsoft 365 8.2 P20251031 build...

CVE-2025-38431

In the Linux kernel, the following vulnerability has been resolved: smb: client: fix regression with native SMB symlinks Some users and customers reported that their backup/copy tools started to fail when the directory being copied contained symlink targets that the client couldn't parse - even...

PT-2025-30838 · Linux · Linux Kernel

Name of the Vulnerable Software and Affected Versions: Linux kernel affected versions not specified Description: A regression was introduced in the SMB client that caused backup and copy tools to fail when encountering symlink targets that the client could not parse, even when those symlinks were...

Citrix NetScaler Automated backup job is failing after recent upgrade.

After upgrading to NetScaler firmware 13.1.56.x or later , attempts to download backup files using the Nitro API may fail. Customers using automation tools such as Ansible , Postman , or custom scripts may receive the following error when downloading files through the systemfile endpoint: Main...

Virtuozzo Hybrid Infrastructure 6.3 Update 1 Hotfix 2 (6.3.1-121)

This update provides stability fixes. Vulnerability id: VSTOR-88806 Live migration failed for VMs with both vstorage and iSCSI volumes. Vulnerability id: VSTOR-89155 Fixed the false-positive alerts "Virtual machine state mismatch" and "Volume attachment details mismatch." Vulnerability id:...

Backup of Powered-Off VM in Proxmox Fails When HA Status is Stopped

Challenge The backup of a powered-off VM within a Proxmox environment where High Availability HA is enabled but the HA status is Stopped , fails with the error: Failed to perform backup: Failed to connect the NBD server to the hypervisor host. Cause The job fails because the High Availability HA...

Backup or Backup Copy Job for SharePoint, OneDrive, or Teams Data Fails With: "Cannot find object"

Challenge After upgrading Veeam Backup for Microsoft 365 to v8 builds 8.0.2.159 or 8.0.2.200, an incremental backup or a backup copy job protecting SharePoint, OneDrive, or Teams data fails with the error: Cannot find object ... Cause In Object Storage Repositories, the metadata saved for the...

dkms 3.1.3-1 Causes Backup to Fail With “Veeam snapshot kernel module not found”

Article Applicability This article is specifically regarding RPM-based Linux distros i.e., Oracle, Fedora, and Tumbleweed that have dkms 3.1.3 installed: root@localhost rpm -qa | grep dkms dkms-3.1.3 -1.el9.noarch Challenge Veeam Agent for Linux backup job fails with the following errors when dkm...

Backup fails with: "The system cannot find the file specified." or "The device is not ready."

Version Applicability This article does not list specific versions of Veeam products because the underlying issue stems from a problem with the Microsoft Volume Shadow Copy Service and is independent of any Veeam product versions. As such, the issue can affect environments regardless of the Veeam...

Veeam Agent for Microsoft Windows Backup Session Failure is Reported as Successful

Challenge In certain rare circumstances, a failed backup retry session for a Veeam Agent for Microsoft Windows job operating in Managed by backup server mode may be reported as a Success. Impacted Configuration Veeam Backup & Replication 12 build 12.0.x Deployed. Veeam Agent for Microsoft Windows...

On-Prem ADM automatic backups failure for ADC instance

ADM auto backup ADC instance operation failed. End user may haveEmail alert if email notification enabled in ADM...

Backup of Microsoft Teams Fails With: Object reference not set to an instance of an object

Challenge Backup of Microsoft Teams in Veeam Backup for Microsoft 365 fails with the following error: Error: Object reference not set to an instance of an object. Copy Cause This issue is related to recent changes in the response syntax of the Microsoft Graph API to a specific request that Veeam...

Virtuozzo Hybrid Infrastructure 4.6 Update 1

This update provides new features, as well as bug fixes and improvements. Vulnerability id: VSTOR-45315 The MDS service may be unstable under a high load condition. Vulnerability id: VSTOR-43126 A deadlock is possible between atomic and non-atomic commands in the iSCSI kernel module. Vulnerabilit...

"Proxy offline time exceeded” error after updating Veeam Backup for Microsoft 365 to version 4c

Challenge After updating Veeam Backup for Microsoft 365 4c build 4.0.1.531 backups start to fail with the "Proxy offline time exceeded". Cause At the end of every month, Veeam Backup for Microsoft 365 collects licensing information. If your Veeam Backup for Microsoft 365 server is installed on a...

Failed to call RPC function: Error code: 0x80131500

Challenge Backup of Remote Desktop Server VMs with Application-Aware Processing may fail with an Unknown error, error code 0x80131500. You will see error messages similar to: "Failed to call RPC function 'Vss.GetSqlInfoForLastSnapshot2': Error code: 0x80131500. Failed to invoke func...

Problem in taking a backup of ADC VPX from ADM

ADM is unable to take periodic backups of ADC and manual backups fail too. Here are the errors that we see in mpsconfig.log in ADM: SCP: Unable to open a session on 192.168.x.x Tuesday, 8 Oct 19 16:00:08.872 +1100 Error DeviceBackup541 Backup: Error uploading /mps/nssystembackup.pl on Citrix ADC...

Error: Backup proxy is missing C++ runtime components

Article Applicability The error message states that the C++ runtime components are missing, which may be inaccurate. The actual cause of the error is that the VDDK libraries cannot be loaded, which in older versions of Veeam Backup & Replication 9.5 and older was caused by missing C++ runtimes...