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CVE-2026-44963 is a critical remote code execution vulnerability in Veeam Backup & Replication 12.x. The flaw is associated with deserialization of untrusted data and allows an authenticated domain user to execute arbitrary code remotely on the Backup Server over the network. The issue affects version 12.3.2.4465 and all earlier version 12 builds, and exposure is specifically tied to domain-joined deployments. Version 13.x is reported as not affected due to architectural changes.
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No valid public exploits. Mallory filtered out 2 candidates as fakes, detection scripts, or README-only repos.
All candidate exploits were filtered out by Mallory's validation.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
54 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A critical remote code execution vulnerability in Veeam Backup & Replication that allows an authenticated low-privilege domain user to execute code on the backup server, affecting domain-joined servers.
A critical authenticated remote code execution vulnerability affecting Veeam Backup & Replication on domain-joined backup servers running vulnerable version 12 builds.
A critical remote code execution vulnerability in Veeam Backup & Replication that allows an authenticated domain user to achieve RCE on domain-joined backup servers.
A critical remote code execution vulnerability in Veeam Backup & Replication 12.x that allows an authenticated low-privileged domain user to execute code on the backup server, potentially resulting in full system compromise.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.